We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byAvery O'Keefe
Modified over 3 years ago
Genetics-study of heredity Heredity- transmission of traits from parents to offspring
I. You are a unique individual 2 things determine this: A. Heredity examples: hair color, eye color, body build and features, diseases, blood type, etc.
B. Environment- your surroundings examples: family, friends, school, community, country, environmental (sun, climate), and internal factors (hormones)
C. Heredity and Environment work together to determine who you are.
!!! Heredity sets limits but environment determines if you reach those limits
Examples: sun (tan??) height (54 or 58)
II. Characteristics inherited A. Species-things that make you like others arms with fingers, hair, eyes
B. Individual things that make you different length, curly or straight, color
III. Gregor Mendel The Father of Genetics
A.His work with garden peas
B. Observed 7 different traits
C. Experimented by breeding plants
D. Plant anatomy: 1. male anther produces pollen with sperm cells
2. Female ovary produces the egg (ovules)
3. Pollination-movement of pollen from stamen to pistil a. Self-pollination -same flower b. Cross-pollination - different plants
E. Mendels Experiment Mendel controlled the crosses by removing the stamen
F. Mendels results: Tall + tall = tall Short + short = short Short + tall = ?????
IV. Why??? Mendels hypothesis: 1. Concept of Unit Characters - Hereditary characteristics are controlled by factors that occur in pairs
We call these factors genes, that are found in the homologous pairs of chromosomes in our cells
Alleles are different forms of a gene, often represented by capital or lowercase letters Ex: Gene = plant height - Alleles: tall or short -Allele for tall = T - Allele for short = t
Examples: tall or short dark hair or red hair Type A blood or Type B blood
2. Principle of Dominance and Recessiveness - one factor may prevent the expression of the other
Dominant - gene that prevents the expression of another characteristic that always appears in a cross between parents
Recessive- characteristic that does not appear if a dominant is present
V. Terms A. Pure - both genes are the same 2 dominant, or 2 recessive - Purebred - TT, tt
B. Hybrid - genes are different; one dominant one recessive - hybrid plants and animals - Tt
C. Homozygous- the same same as pure (TT, tt) D. Heterozygous- different same as hybrid (Tt)
F. Genotype - the genes of an organism; its genetic makeup - Use of symbols to represent genes Ex: TT tt Tt
G. Phenotype - the physical characteristic or trait of the organism - written in words, descriptive Ex: short or tall type A blood type
VI. Law of segregation - a pair of genes separate during the formation of sex cells
A. Punnett square- a method used to determine possible combinations of genes in offspring
C. Test-cross - crossing an individual with an unknown genotype but a known dominant phenotype with a recessive to determine its genotype
VII. Law of Independent Assortment- chromosomes with their genes separate independently of each other - Genetics cannot be predicted to an absolute, but we can determine the probability
Dihybrid cross-crossing organisms differing in 2 characters
1 Vocabulary Review GENETICS. 2 Study of how characteristics are transmitted from parent to offspring GENETICS.
Mendel’s Laws of Heredity. Important Terms 1. Traits – characteristics that are inherited 2. Heredity – passing on of characteristics from parents to.
Mendelian Genetics. Gregor Mendel ( ) Responsible for the laws governing Inheritance of Traits.
Intro to Genetics November Heredity Study of the transmission of characteristics from parent to offspring. The field of genetics began with the.
Genetics. Gregor Mendel Father of Genetics published findings on plant breeding and inheritance (During American Civil War) Not discovered.
Genetics. Gregor Mendel Father of Genetics published findings on plant breeding and inheritance (During American Civil War) Not discovered until.
Gregor Mendel Monk and Scientist Father of Genetics In 1843, at the age of 21, Gregor Mendel entered the monastery. Born in what is now known as.
The study of inheritance of traits. Austrian Monk Studied how traits were passed from parent to offspring His ideas forms the foundation for the.
Basic Genetics Gregor Mendel The Father of Genetics.
Monohybrid Crosses. Gregor Mendel Austrian monk who started the study of genetics in his monastery’s garden in the 1860s Studied heredity in garden peas.
Mendels Law of Heredity Chapter 10, Section 1. The Father of Genetics Gregor Mendels experiments founded many of the principles of Genetics we use today.
INHERITANCE or HEREDITY- The genetic transmission of characteristics from parent to offspring, such as hair, eye, and skin color.
Fundamentals of Genetics Gregor Mendel: Genetics Pioneer Genetics = study of __________. Gregor Mendel – Australian Monk Identified 7 pairs of contrasting.
Mendel’s Laws of Heredity Gregor Mendel An Austrian monk who studied heredity through pea plants “Father of Genetics”
Chapter 6 Mendelian Genetics. Genetics – the scientific study of heredity Gregor Mendel is said to be the father of genetics. Mendel used pea plants to.
Lab Biology Chapter 9 - Genetics Mrs. Nemanic. I. Mendel’s Legacy Genetics – study of heredity A. Gregor Mendel 1. Researched heredity – the passing of.
Genetics Review 23 How many pairs of chromosomes do humans have?
Principles of Heredity. Genetics – study of heredity => transmission of traits (genes) from one generation to another parent => offspring.
Mendel’s Laws of Heredity Chapter 10.1 (This might take 2 days)
Genetics Mr. Young Biology Mr. Young Biology. Heredity Heredity – characteristics inherited from parents to offspring through genes.
Genetics. What is Genetics Genetics is the scientific study of heredity. Heredity is what makes each species unique. Heredity is the passing on.
GENETICS Introduction. Genetics Study of heredity Gregor Mendel is considered the “father of genetics” Mendel studied the traits of pea plants A trait.
Genetics: Inheriting Traits. I. Inheriting Traits A. An organism characteristics is the collection of many traits inherited from its parent(s) 1. Heredity-
Heredity and Genetics. Inheriting Traits An organism is a collection of traits, all inherited from its parents. –Eye color, hair color, height, nose shape,
Gregor Mendel : Known as “THE FATHER OF GENETICS”. - laid the foundations for the SCIENCE OF GENETICS through his study of inheritance patterns of traits.
Genetics Notes Gregor Mendel Father of genetics Austrian monk worked with pea plants.
Section 5-1 What is Genetics?. I. What have you inherited? Heredity is the passing of traits from parents to offspring Heredity is the passing of traits.
Heredity Chapter 11. Transmission of characteristics from parent to offspring is called ___________________. The science that studies how those characteristics.
HEREDITY Heredity is the passing on of traits from parents to offspring. In this family tree, traits such as hair color and poor eyesight are passed.
Principles of Mendelian Genetics B-4.6. Principles of Mendelian Genetics Genetics is the study of patterns of inheritance and variations in organisms.
Genetics. Genetics- is the branch of biology which studies heredity and variation among related organisms. It is the science of heredity Heredity-the.
I. Gregor Mendel A. Mendel performed 1 st experiments in heredity -the passing on of characteristics from parents to offspring. B. Mendel’s work founded.
6.3 Mendel and Heredity KEY CONCEPT Mendel’s research showed that traits are inherited as discrete units.
Gregor Mendel: known in the science world as “THE FATHER OF GENETICS”. - laid the foundations for the SCIENCE OF GENETICS through his study of inheritance.
Is the scientific study of heredity Heredity: characteristic that can be passed from parent to offspring –Ex: Height, eye color… Founding father: Gregor.
Genetics. Heredity- passing of traits from parent to offspring Traits- hair color, eye color, height, etc. (are like your parents) -characteristics that.
Warm up: Definitions Dominant – trait expressed, Capital letter (ex “B”) Recessive – trait masked, lowercase letter (ex “b”) Heterozygous – 1 dominant.
Inheritance of Traits. The Relationship Among Genes and Chromosomes.
Mendelian Genetics. Vocabulary Terms 1.Allele- different forms of a gene 2.Phenotype- observable trait or characteristic 1.I.e. Green eyes, black hair.
Cell Cycle & Mendelian Genetics. Genetics Vocabulary Genetics- scientific study of heredity Heredity- information that makes each species unique Trait-
Mendel’s Law of Heredity Chapter 10, Section 1. The Father of Genetics Gregor Mendel’s experiments founded many of the principles of Genetics we use today.
GENETICS & THE WORK OF MENDEL What is Genetics? Genetics studies heredity. Heredity is the passing of traits from parents to offspring.
Genetics. Heredity Passing of genetic traits from parent to offspring Gregor Mendel discovered the principles of heredity while studying pea plants (“Father.
The Work of Mendel. Heredity: the passing of traits from parents to offspring Genetics: Study of heredity Traits -inherited characteristics.
Mendel & Genetics Review Powerpoint Gregor Mendel, the father of genetics.
1 Mendelelian Genetics 2 Gregor Mendel ( ) Responsible for the Laws governing Inheritance of Traits.
Genetics Punnett Squares PA State Standards C.
© 2017 SlidePlayer.com Inc. All rights reserved.