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- Claude Bernard -

“The joy of discovery is certainly the liveliest that the mind of man can ever feel”

Lecture 1:    Respiration     

Respiration- process wherein body takes in O2 and eliminates gaseous waste product.

 

ANATOMY OF NASAL CAVITY

 

-Factory receptors are located in the mucosa on the superior surface.

-The rest of the cavity is lined with respiratory mucosa

PHARYNX

-Muscular passage from nasal cavity to larynx

  • Nasopharynx

  • Superior ( bigger) region behind nasal cavity

  • Oropharynx

  • Are common passage ways for air and food

  • Laryngopharynx

  •  Inferior region attached to larynx

 

 LARYNX

-Routes Air and food into proper channels

- Plays a role in speech

-Made of eight rigid hyaline cartilage and a spoon shaped flap of elastic cartilage ( EPIGLOTTIS)

 

STRUCTURE

-Thyroid cartilage

-Vocal chords

-Glottis

 

TRACHEA (Windpipe)

-Connects larynx with bronchi

-Lined with ciliated mucosa

 

PRIMARY BRONCHI

-Formed by division of the trachea

-Right bronchus is wider,shorter, and straighten than left

-Bronchi subdivide into smaller and smaller branches

 

LUNGS

-Occupy most of the thoracic cavity

-Apex is near the claude (superior portion)

- Base rests on the diaphragm (inferior portion)

 

VEIN

-Towards the heart

 

ARTERY

-Away from the heart

 

CAPILLARY (Smallest)

-Connect the two

 

BRONCHIOLES

-Smallest branches of the bronchi

 

GAS EXHCHANGE

-Gas crosses the respiratory membrane by diffusion

-Oxygen enters the blood

-Carbondioxide enters the alveoli

 

DIFFUSION

-From high concentration(strong)to low concentration

 

 

  

 

 

    Lecture 2:  
 The cardiovascular    system    

Respiration- process wherein body takes in O2 and eliminates gaseous waste product.

 

ANATOMY OF NASAL CAVITY

 

-Factory receptors are located in the mucosa on the superior surface.

-The rest of the cavity is lined with respiratory mucosa

PHARYNX

-Muscular passage from nasal cavity to larynx

  • Nasopharynx

  • Superior ( bigger) region behind nasal cavity

  • Oropharynx

  • Are common passage ways for air and food

  • Laryngopharynx

  •  Inferior region attached to larynx

 

 LARYNX

-Routes Air and food into proper channels

- Plays a role in speech

-Made of eight rigid hyaline cartilage and a spoon shaped flap of elastic cartilage ( EPIGLOTTIS)

 

STRUCTURE

-Thyroid cartilage

-Vocal chords

-Glottis

 

TRACHEA (Windpipe)

-Connects larynx with bronchi

-Lined with ciliated mucosa

 

PRIMARY BRONCHI

-Formed by division of the trachea

-Right bronchus is wider,shorter, and straighten than left

-Bronchi subdivide into smaller and smaller branches

 

LUNGS

-Occupy most of the thoracic cavity

-Apex is near the claude (superior portion)

- Base rests on the diaphragm (inferior portion)

 

VEIN

-Towards the heart

 

ARTERY

-Away from the heart

 

CAPILLARY (Smallest)

-Connect the two

 

BRONCHIOLES

-Smallest branches of the bronchi

 

GAS EXHCHANGE

-Gas crosses the respiratory membrane by diffusion

-Oxygen enters the blood

-Carbondioxide enters the alveoli

 

DIFFUSION

-From high concentration(strong)to low concentration

 

 

  

 

 

Respiration- process wherein body takes in O2 and eliminates gaseous waste product.

 

ANATOMY OF NASAL CAVITY

 

-Factory receptors are located in the mucosa on the superior surface.

-The rest of the cavity is lined with respiratory mucosa

PHARYNX

-Muscular passage from nasal cavity to larynx

  • Nasopharynx

  • Superior ( bigger) region behind nasal cavity

  • Oropharynx

  • Are common passage ways for air and food

  • Laryngopharynx

  •  Inferior region attached to larynx

 

 LARYNX

-Routes Air and food into proper channels

- Plays a role in speech

-Made of eight rigid hyaline cartilage and a spoon shaped flap of elastic cartilage ( EPIGLOTTIS)

 

STRUCTURE

-Thyroid cartilage

-Vocal chords

-Glottis

 

TRACHEA (Windpipe)

-Connects larynx with bronchi

-Lined with ciliated mucosa

 

PRIMARY BRONCHI

-Formed by division of the trachea

-Right bronchus is wider,shorter, and straighten than left

-Bronchi subdivide into smaller and smaller branches

 

LUNGS

-Occupy most of the thoracic cavity

-Apex is near the claude (superior portion)

- Base rests on the diaphragm (inferior portion)

 

VEIN

-Towards the heart

 

ARTERY

-Away from the heart

 

CAPILLARY (Smallest)

-Connect the two

 

BRONCHIOLES

-Smallest branches of the bronchi

 

GAS EXHCHANGE

-Gas crosses the respiratory membrane by diffusion

-Oxygen enters the blood

-Carbondioxide enters the alveoli

 

DIFFUSION

-From high concentration(strong)to low concentration

 

 

  

 

 

Respiration- process wherein body takes in O2 and eliminates gaseous waste product.

 

ANATOMY OF NASAL CAVITY

 

-Factory receptors are located in the mucosa on the superior surface.

-The rest of the cavity is lined with respiratory mucosa

PHARYNX

-Muscular passage from nasal cavity to larynx

  • Nasopharynx

  • Superior ( bigger) region behind nasal cavity

  • Oropharynx

  • Are common passage ways for air and food

  • Laryngopharynx

  •  Inferior region attached to larynx

 

 LARYNX

-Routes Air and food into proper channels

- Plays a role in speech

-Made of eight rigid hyaline cartilage and a spoon shaped flap of elastic cartilage ( EPIGLOTTIS)

 

STRUCTURE

-Thyroid cartilage

-Vocal chords

-Glottis

 

TRACHEA (Windpipe)

-Connects larynx with bronchi

-Lined with ciliated mucosa

 

PRIMARY BRONCHI

-Formed by division of the trachea

-Right bronchus is wider,shorter, and straighten than left

-Bronchi subdivide into smaller and smaller branches

 

LUNGS

-Occupy most of the thoracic cavity

-Apex is near the claude (superior portion)

- Base rests on the diaphragm (inferior portion)

 

VEIN

-Towards the heart

 

ARTERY

-Away from the heart

 

CAPILLARY (Smallest)

-Connect the two

 

BRONCHIOLES

-Smallest branches of the bronchi

 

GAS EXHCHANGE

-Gas crosses the respiratory membrane by diffusion

-Oxygen enters the blood

-Carbondioxide enters the alveoli

 

DIFFUSION

-From high concentration(strong)to low concentration

 

 

  

 

 

CARDIOVASCULAR

-Consists of heart and blood vessels

 

HEART

-Cone-shaped organ

-Rests on the diaphragm interiorly

 

HEART COVERING

  • Pericardium- covers the heart and large blood vessels attached to the heart

 

FOUR CHAMBERS

-Right Atrium/Ventricle

-Left Atrium/Ventricle

 

PULMONARY VALVE

-Prevents blood fromflowing back into the right ventricle

 

AORTIC VALVE

-Prevents blood from flowing into the left ventricle

 

TYPES OF CIRCULATION

1.Pulmonary Circulation –the blood goes to the lungs

2. Systematic Circulation- All throughout the body

3. Coronary Circulation

 

VALVE

-opening passageway/regulate

 

BISCUPID VALVE

-also known as mitral


ATRIA VENTRICULAR(AU MODE)

-Between atria just above ventricles

 

BUNDLE OF HIS

-Between ventricles

-two branches

-sends impulse to

 

PURKINJE FILTERS

-Lateral walls of ventrioles

-Ventricles contract

 

BLOOD VESSEL ( Arteries and Arterioles)

-Strongest  of the blood vessels

-carry blodd away from the heart

  • Arterioles

-small branches

  • Aorta

-take sblood from the heart

Vein

  • Venules

-small venules formed when capillaries merge

  • Superior and Inferior Vena Cava

-Largest veins

-Carry blood into right

 

CAPILLARIES

-Smallest type of blood vessels

-Branches of arterioles

-Connect artery and vein

 

BLOOD PRESSURE

-force blood exerts on the inner highest arteries

 

RED BLOOD CELLS

-Contains the hemoglobin

 

WHITE BLOOD CELLS

-also known as thrombocytes

 

PLATELETS

-it helps us to stop bleeding/ blood clotting

 

PLASMA

-it contain the heme

 

HEMOSTASIS

-controlof bleeding

 

 

    Lecture 2:  
 The cardiovascular    system    

CARDIOVASCULAR

-Consists of heart and blood vessels

 

HEART

-Cone-shaped organ

-Rests on the diaphragm interiorly

 

HEART COVERING

  • Pericardium- covers the heart and large blood vessels attached to the heart

 

FOUR CHAMBERS

-Right Atrium/Ventricle

-Left Atrium/Ventricle

 

PULMONARY VALVE

-Prevents blood fromflowing back into the right ventricle

 

AORTIC VALVE

-Prevents blood from flowing into the left ventricle

 

TYPES OF CIRCULATION

1.Pulmonary Circulation –the blood goes to the lungs

2. Systematic Circulation- All throughout the body

3. Coronary Circulation

 

VALVE

-opening passageway/regulate

 

BISCUPID VALVE

-also known as mitral


ATRIA VENTRICULAR(AU MODE)

-Between atria just above ventricles

 

BUNDLE OF HIS

-Between ventricles

-two branches

-sends impulse to

 

PURKINJE FILTERS

-Lateral walls of ventrioles

-Ventricles contract

 

BLOOD VESSEL ( Arteries and Arterioles)

-Strongest  of the blood vessels

-carry blodd away from the heart

  • Arterioles

-small branches

  • Aorta

-take sblood from the heart

Vein

  • Venules

-small venules formed when capillaries merge

  • Superior and Inferior Vena Cava

-Largest veins

-Carry blood into right

 

CAPILLARIES

-Smallest type of blood vessels

-Branches of arterioles

-Connect artery and vein

 

BLOOD PRESSURE

-force blood exerts on the inner highest arteries

 

RED BLOOD CELLS

-Contains the hemoglobin

 

WHITE BLOOD CELLS

-also known as thrombocytes

 

PLATELETS

-it helps us to stop bleeding/ blood clotting

 

PLASMA

-it contain the heme

 

HEMOSTASIS

-controlof bleeding

 

 

    Lecture 3:  
Some Bad habits that affects the circulatory and the Respiratory Systems
    Lecture 3:  
Some Bad habits that affects the circulatory and the Respiratory Systems

CARBON MONOXIDE

-An odorless,colorless,and toxic gas .It is common by-product of fuels that burn such as gasolines,diesel,propane,natural gas,and kerosene.Exhaust frominternal combustion engines also contains carbon monoxide.

 

HYDROCARBON

-In high concentration,hydrocarbons can cause cough,cancer,nauseas,body temeperature changes, and in extreme cases Death.

-found in motor oil,gasoline additives,kerosene,paint thinners,water proofing agents,and mineral,oil based cosmetics products.

 

NITROGEN OXIDE

-decreases resistance to infections such as flu and decreases the capacity of blood to deliver O2.

-produced by high-temperature fuel combustion

-Exposure to the high levels of nitrogen oxide can cause asthmaand other respiratory ailments.

 

SULFUR DIOXIDE

-a colorless gas that has a strong, pungent odor.It is formed the burning of sulfur-containing fuels.

-It can also worsen existing cardiovascular diseases such as bronchitis andit increases the morality rates of persons with cancer

 

ALCOHOL DRINKING

-Excessive alcohol intake can increase your blood pressure and can cause your heart musclesto thicken,stiffen, and abnormality,enlarge which weakens the heart and reduces its capacity to pump blood.

 

ASBESTOS

-A group of naturally occurring fibrous minerals. Used for industrious purposes.

-If inhaled through the nose or mouth,is resistant to the internal defenses of the body.

 

RADON

-A natural radio active that is found at low levels outdoors but can be high levels indoors

-When inhaled, radon gas can change into a radio active chemical which can cause various respiratory diseases such as lung cancer,emphysema,pulmonary fibrosis,and even genotoxic (CAUSING DAMAGE OF DNA) effects such as chromosomal aberrations once deposited in lungs.

 

ARSENIC

-a colorless poisonous chemical that affects the circulatory system.

-can found in various industries such as mining,wood preservations ,glass production, and electronic semi conductor that use inorganic arsenic and its compounds.

-foundin contaminated groundwater.

 

CYANIDE

-a toxic chemical w/c is used in fumigation,mining, and electroplating activities.

-this deadly chemical disrupts the ability of the body’s cells to use oxygen. This decrease in oxygen utilization damages the heart and the nervous system w/c can result in DEATH.

 

LACK OF AN SLEEP

-Can make a person more prone to cardiovascular ailments such as heart attack and heart failure. It can also cause high blood pressure or hypertension.

 

SOOT

-An atmospheric pollutant produced from burning materials such ascoalor wood. Materials that are being burned .

-can damage lung tissues and it also contains hydrocarbon.

 

METHYLENE CHLORIDE

-a colorless,non-flammable,and volatile liquid

-found in paint removers, industrial solvents, and fire extinguishers.

-has adverse effects on the heart,central nervous system,and liver.

 

ARRHYTHMIA

-An abnormality in the beating of the heart . The heartbeat of a person with this condition may be too fast, too slow ,or irregular

 

CONGENITAL HEART DEFECT

-An abnormality in the structure of the heart upon a child’s birth.

-defects may include a hole in the sepum or a displaced aorta.

 

CORONARY HEART DISEASE

-A disease that progresseswhen fatty deposits,calcium and scar tissues or plaque build up in the artery wchich supplies the heart with blood.

 

DISEASES OR DISORDERS OF THE CIRCULATORY SYSTEM

MYOCARDIAL INRFARCTION OR HEART ATTARCK

-happens when the coronary arteries or one of their smaller branches leading to a part of the heart muscle is blocked,usually caused by a blood clot.

-when this happens the part of the heart loses its blood andoxygen supplies.

 

BRONCHIAL ASTHMA

-a disease caused by the narrowing of the bronchial airways of the lungs w/c can lead to cough,wheezing,and difficulty in breathing.

-caused by allergens present in the surroundings.

 

BRONCHITIS

-An inflammation of the lining of the bronchial tubes caused by the infection of the viruses and bacteria.

-the disease is acquired through cigarette smoking and exposure to polluted air.

 

EMPHYSEMA

-an inflammation and damage to the air sacs of the lungs.

-caused by smoking and sometimes comes as an individual ages.

 

TUBERCOLOSIS

-an infectious disease caused by the bacterium MYCOBACTERIUM TUBERCOLOSIS.

-People suffering fromthis diseaseexperience fever,nights sweats , weight loss, and blood- stained sputum.

 

Diseases of the Respiratory System

 

LUNG CANCER

-The most common type of cancer in the world and one of the leading causes of cancer related deaths in the PHILIPPINES.

-Cancer occurs when cells g row anddivide uncontrollably,affecting the surroundings parts of the body.

-it is caused by smoking.

 

 

Taking care of the Circulatory and the Respiratory Systems

  1. Exercise regularly

  2. Eat balanced diet

  3. Drink plenty of water

  4. Protect yourself against air polluntants and harmful substances

  5. Keep away from the bad habits

  6. Practice good hygiene

  7. Keep your surroundings clean

  8. Get plenty of rest

     

     

     

     

     

     

     

     

     

          Lecture 4:           Language of 
   genetics    

CARBON MONOXIDE

-An odorless,colorless,and toxic gas .It is common by-product of fuels that burn such as gasolines,diesel,propane,natural gas,and kerosene.Exhaust frominternal combustion engines also contains carbon monoxide.

 

HYDROCARBON

-In high concentration,hydrocarbons can cause cough,cancer,nauseas,body temeperature changes, and in extreme cases Death.

-found in motor oil,gasoline additives,kerosene,paint thinners,water proofing agents,and mineral,oil based cosmetics products.

 

NITROGEN OXIDE

-decreases resistance to infections such as flu and decreases the capacity of blood to deliver O2.

-produced by high-temperature fuel combustion

-Exposure to the high levels of nitrogen oxide can cause asthmaand other respiratory ailments.

 

SULFUR DIOXIDE

-a colorless gas that has a strong, pungent odor.It is formed the burning of sulfur-containing fuels.

-It can also worsen existing cardiovascular diseases such as bronchitis andit increases the morality rates of persons with cancer

 

ALCOHOL DRINKING

-Excessive alcohol intake can increase your blood pressure and can cause your heart musclesto thicken,stiffen, and abnormality,enlarge which weakens the heart and reduces its capacity to pump blood.

 

ASBESTOS

-A group of naturally occurring fibrous minerals. Used for industrious purposes.

-If inhaled through the nose or mouth,is resistant to the internal defenses of the body.

 

RADON

-A natural radio active that is found at low levels outdoors but can be high levels indoors

-When inhaled, radon gas can change into a radio active chemical which can cause various respiratory diseases such as lung cancer,emphysema,pulmonary fibrosis,and even genotoxic (CAUSING DAMAGE OF DNA) effects such as chromosomal aberrations once deposited in lungs.

 

ARSENIC

-a colorless poisonous chemical that affects the circulatory system.

-can found in various industries such as mining,wood preservations ,glass production, and electronic semi conductor that use inorganic arsenic and its compounds.

-foundin contaminated groundwater.

 

CYANIDE

-a toxic chemical w/c is used in fumigation,mining, and electroplating activities.

-this deadly chemical disrupts the ability of the body’s cells to use oxygen. This decrease in oxygen utilization damages the heart and the nervous system w/c can result in DEATH.

 

LACK OF AN SLEEP

-Can make a person more prone to cardiovascular ailments such as heart attack and heart failure. It can also cause high blood pressure or hypertension.

 

SOOT

-An atmospheric pollutant produced from burning materials such ascoalor wood. Materials that are being burned .

-can damage lung tissues and it also contains hydrocarbon.

 

METHYLENE CHLORIDE

-a colorless,non-flammable,and volatile liquid

-found in paint removers, industrial solvents, and fire extinguishers.

-has adverse effects on the heart,central nervous system,and liver.

 

ARRHYTHMIA

-An abnormality in the beating of the heart . The heartbeat of a person with this condition may be too fast, too slow ,or irregular

 

CONGENITAL HEART DEFECT

-An abnormality in the structure of the heart upon a child’s birth.

-defects may include a hole in the sepum or a displaced aorta.

 

CORONARY HEART DISEASE

-A disease that progresseswhen fatty deposits,calcium and scar tissues or plaque build up in the artery wchich supplies the heart with blood.

 

DISEASES OR DISORDERS OF THE CIRCULATORY SYSTEM

MYOCARDIAL INRFARCTION OR HEART ATTARCK

-happens when the coronary arteries or one of their smaller branches leading to a part of the heart muscle is blocked,usually caused by a blood clot.

-when this happens the part of the heart loses its blood andoxygen supplies.

 

BRONCHIAL ASTHMA

-a disease caused by the narrowing of the bronchial airways of the lungs w/c can lead to cough,wheezing,and difficulty in breathing.

-caused by allergens present in the surroundings.

 

BRONCHITIS

-An inflammation of the lining of the bronchial tubes caused by the infection of the viruses and bacteria.

-the disease is acquired through cigarette smoking and exposure to polluted air.

 

EMPHYSEMA

-an inflammation and damage to the air sacs of the lungs.

-caused by smoking and sometimes comes as an individual ages.

 

TUBERCOLOSIS

-an infectious disease caused by the bacterium MYCOBACTERIUM TUBERCOLOSIS.

-People suffering fromthis diseaseexperience fever,nights sweats , weight loss, and blood- stained sputum.

 

Diseases of the Respiratory System

 

LUNG CANCER

-The most common type of cancer in the world and one of the leading causes of cancer related deaths in the PHILIPPINES.

-Cancer occurs when cells g row anddivide uncontrollably,affecting the surroundings parts of the body.

-it is caused by smoking.

 

 

Taking care of the Circulatory and the Respiratory Systems

  1. Exercise regularly

  2. Eat balanced diet

  3. Drink plenty of water

  4. Protect yourself against air polluntants and harmful substances

  5. Keep away from the bad habits

  6. Practice good hygiene

  7. Keep your surroundings clean

  8. Get plenty of rest

     

     

     

     

     

     

     

     

     

GENETICS

-Is the study of genes,hereditary,and genetic variation  in living organism.

-It is generally considered a field of biology, but it intersects frequently witjh many of the life sciences and is strongly linked with the study of information systems.

 

GENE

-Is the basic physical and functional unit of heredity,Genes, which are made up of DNA, act as instructions to make molecules called protein.In humans,genes vary in size from a few hundred DNA bases to more than 2 million bases.

 

ALLELES

-Alternative forms of the same gene.

-Alleles for a trait are located at corresponding positions on homologous chromosomes.

 

GENOTYPE

-The genes present in the DNA or an organism.

-We will use a pair of letters (ex: Tt or Xx or ss, etc.) to represents the genotypes  for one particular  trait.

-There are always two letters in the genotypes because (as a result of sexualreproduction) one code for the trait.

-Comes from mama organism and the other comes from papa organism , so every offspring gets two codes (two letters).

 

PHENOTYPES

-How the trait physically shows-up in the organism.

TT- Homozygous=pure

Tt-Heterozygous=hybrid

 

ALLELES

-unique molecular forms of the same gene alternate from a gene.

 

DOMINANT ALLELE

-mask the expression of another allele usually a capital letter or uppercase

 

RECESSIVE ALLELE

-masked by the dominant allele ( small letter )

 

HOMOZYGOUS

-two identical alleles for a gene

 

HETEROZYGOUS

-two different alleles for a gene

 

GENOTYPE

-genetic make uo particular allele of individual carries

 

PHENOTYPE

-individual observable traits

 

MENDEL’S LAW ARE AS FOLLOWS:

 

  1. The Law of Dominance

- one dominant trait that will mask the recessive trait.

 

   2.The Law of Segregation

-During the transition of gametes ( sex) allele

 

   3. Law of Independent Assortment

-alleles for different traits are distributed in sex cells to one another.

 

          Lecture 4:           Language of 
   genetics    

GENETICS

-Is the study of genes,hereditary,and genetic variation  in living organism.

-It is generally considered a field of biology, but it intersects frequently witjh many of the life sciences and is strongly linked with the study of information systems.

 

GENE

-Is the basic physical and functional unit of heredity,Genes, which are made up of DNA, act as instructions to make molecules called protein.In humans,genes vary in size from a few hundred DNA bases to more than 2 million bases.

 

ALLELES

-Alternative forms of the same gene.

-Alleles for a trait are located at corresponding positions on homologous chromosomes.

 

GENOTYPE

-The genes present in the DNA or an organism.

-We will use a pair of letters (ex: Tt or Xx or ss, etc.) to represents the genotypes  for one particular  trait.

-There are always two letters in the genotypes because (as a result of sexualreproduction) one code for the trait.

-Comes from mama organism and the other comes from papa organism , so every offspring gets two codes (two letters).

 

PHENOTYPES

-How the trait physically shows-up in the organism.

TT- Homozygous=pure

Tt-Heterozygous=hybrid

 

ALLELES

-unique molecular forms of the same gene alternate from a gene.

 

DOMINANT ALLELE

-mask the expression of another allele usually a capital letter or uppercase

 

RECESSIVE ALLELE

-masked by the dominant allele ( small letter )

 

HOMOZYGOUS

-two identical alleles for a gene

 

HETEROZYGOUS

-two different alleles for a gene

 

GENOTYPE

-genetic make uo particular allele of individual carries

 

PHENOTYPE

-individual observable traits

 

MENDEL’S LAW ARE AS FOLLOWS:

 

  1. The Law of Dominance

- one dominant trait that will mask the recessive trait.

 

   2.The Law of Segregation

-During the transition of gametes ( sex) allele

 

   3. Law of Independent Assortment

-alleles for different traits are distributed in sex cells to one another.

 

    Lecture 5:  
Non-Mendelian genetics: Complete and Incomplete dominance

INCOMPLETE DOMINANCE

-neither allele is completely dominant over the other allele

-heterozygous phenotype

EX.

  • 4’oclock flower

 

 

Codominance

- is a relationship between two versions of a gene. Individuals receive one version of a gene, called an allele, from each parent. If the alleles are different, the dominant allele usually will be expressed, while the effect of the other allele, called recessive, is masked.

 

 

 

INCOMPLETE DOMINANCE

-neither allele is completely dominant over the other allele

-heterozygous phenotype

EX.

  • 4’oclock flower

 

 

Codominance

- is a relationship between two versions of a gene. Individuals receive one version of a gene, called an allele, from each parent. If the alleles are different, the dominant allele usually will be expressed, while the effect of the other allele, called recessive, is masked.

 

 

 

    Lecture 6:  
 
   Lecture 7:  
 Sex linked
 sex limited
sex influenced trait
 
 

CHROMOSOMES

-A threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of gene.

 

CHROMOSOMIC THEORY

-Developed in 1902 by Walter Sutton

-Proposed that genes are present is chromosomes

Ex.Fruit Flies

 

KARYOTYPE

-shows the number of chromosomes of an organisms as well as its characteristics arranged in a particular pattern.

 

SEX CHROMOSOMES

* XX-  For girls

* XY- For Boys

 

SEX LINKED TRAIT

-controlled by gene present show inheritance patterns different than those genes on autosomes.

 

PEDIGREE

-genetic diagram that shows family traits from ancestors the present generation and the possible future offspring who was acquire a particular trait

 

EX.

  1. Color Blindness 

  2. .Hemophilia

  3. Hunfer Syndrome

  4. Muscular Distrophy

 

SEX INFLUENCE TRAITS

-traits that are expressed differently either in frequency or degree both sexes

 

EX.

  1. Baldness ----- Testosterone

 

SEX LIMITED TRAITS

-autosomal traits present in both sexes but expressed only in one sex

 

EX.

  1. Lactation

  2. Mustache

  3. Deep Voice

 

   Lecture 7:  
 Sex linked
 sex limited
sex influenced trait
 
 
   Lecture 8:  
Population and communities
 
 
 

Immigration

- is formed from the latin prefix meaning in and migrate

 

Emigration

-leaving in population

 

Population ( time,space and number of individuals)

- number of individuals

 

Population Density

-PD = Number of individuals

 

Expontential Growth

-occurs when the individuals in a population reproduce in a constnt rate

 

Logistic Growth

-occurs when a population growth slows of stop following a period of "EXPOTENTIAL GROWTH"

 

Carrying Capacity

-the number or the largest number of individuals that a given environment can support.

 

Limiting Factors

-Competition

 

Abiotic Factor

-Non living component

 

- Predator - Prey Relationship

 

Density-Dependent Factors (Competition/Predators)

- Influence of environmental factors depends on the population

 

Density-Independent Factors (Earthquak,Tsunami, Typhoon)

- environmental factors that affect the size of the population but not affected in return

 

PITOGO HIGH SCHOOL

Mr. Mark Salibio                      Group 7                             9-Pascal

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