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Punnett square

Pearson Ch 14 - Mendel and Genes

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Classical genetics
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Ch 14: Mendel and the Gene Idea Overview: Drawing from the Deck of Genes What genetic principles account for the passing of traits from parents to offspring? The ?blending? hypothesis is the idea that genetic material from the two parents blends together (like blue and yellow paint blend to make green) The ?particulate? hypothesis is the idea that parents pass on discrete heritable units (genes) This hypothesis can explain the reappearance of traits after several generations Mendel documented a particulate mechanism through his experiments with garden peas Concept 14.1: Mendel used the scientific approach to identify two laws of inheritance Mendel discovered the basic principles of heredity by breeding garden peas in carefully planned experiments

Virtual Fly Lab

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Drosophila melanogaster
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Punnett square

Name __________________________________ Period ___________ AP Biology Lab 7: Genetics of Drosophila (virtual version) Overview In this lab you will be doing virtual genetic crosses of fruit flies (Drosophila melanogaster). You will learn how to collect data from F1 and F2 generations and analyze the results from a monohybrid, dihybrid, or sex-linked cross. Objectives Use chi-square to analyze data Understand the life cycle of fruit flies Investigate the independent assortment of two genes and determine whether the two genes are autosomal or sex-linked using a multi-generation experiment Introduction

Lab 7

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Drosophila melanogaster
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Punnett square

Name __________________________________ Period ___________ AP Biology Lab 7: Genetics of Drosophila (virtual version) Overview In this lab you will be doing virtual genetic crosses of fruit flies (Drosophila melanogaster). You will learn how to collect data from F1 and F2 generations and analyze the results from a monohybrid, dihybrid, or sex-linked cross. Objectives Use chi-square to analyze data Understand the life cycle of fruit flies Investigate the independent assortment of two genes and determine whether the two genes are autosomal or sex-linked using a multi-generation experiment Introduction

Ap Biology Chapter 14 Genetics Review

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Genetics
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Dominance
Recessive
Punnett square
Sickle-cell disease
genotype
Sickle cell trait
Genetic disorder
Hybrid
health
behavior
Human development
Interpersonal relationships
Love
Psychoanalysis
Human behavior
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Evolutionary biology
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Chapter 14 #5 A black guinea pig crossed with an albino guinea pig produces 12 black offspring. When the albino is crossed with a second black one, 7 blacks and 5 albinos are obtained. What is the best explanation for this genetic situation? Write genotypes for the parents, gametes, and offspring Answer Albino (b) is a recessive trait; black (B) is dominant. First cross: parents BB ? bb; gametes B and b; offspring all Bb (black coat). Second cross: parents bb ? Bb; gametes 1/2 B and 1/2 b (heterozygous parent) and b; offspring 1/2 Bb and 1/2 bb #6

Ap Biology Genetics Questions

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Genetic disorder
Sickle cell trait
health
behavior
Human development
Interpersonal relationships
Love
Psychoanalysis
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Evolutionary biology
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Genetics Problems 1. A rooster with gray feathers is mated with a hen of the same phenotype. Among their offspring, 15 chicks are gray, 6 are black, and 8 are white. What is the simplest explanation for the inheritance of these colors in chickens? What offspring would you predict from the mating of a gray rooster and a black hen? 2. In some plants, a true-breeding, red-flowered strain gives all pink flowers when crossed with a white-flowered strain: RR (red) x rr (white) ---> Rr (pink). If flower position (axial or terminal) is inherited as it is in peas what will be the ratios of genotypes and phenotypes of the generation resulting from the following cross: axial-red (true-breeding) x terminal-white? What will be the ratios in the F2 generation?

Ap Bio. Chapter 14 Review

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Classical genetics
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Genetics
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Monohybrid cross
Punnett square
Dominance
Recessive
Zygosity
Mendelian inheritance
Dihybrid cross
genotype
health
behavior
Human development
Interpersonal relationships
Love
Psychoanalysis
Human behavior
Personal life
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Chapter 14 Mendel and the Gene Idea Overview: Drawing from the Deck of Genes What genetic principles account for the passing of traits from parents to offspring? The ?blending? hypothesis is the idea that genetic material from the two parents blends together (like blue and yellow paint blend to make green) The ?particulate? hypothesis is the idea that parents pass on discrete heritable units (genes) Mendel documented a particulate mechanism through his experiments with garden peas Concept 14.1: Mendel used the scientific approach to identify two laws of inheritance Mendel discovered the basic principles of heredity by breeding garden peas in carefully planned experiments Mendel?s Experimental, Quantitative Approach Advantages of pea plants for genetic study:

chapter 14 notes

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Monohybrid cross
Dominance
Punnett square
Recessive
genotype
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Test cross
health
behavior
Human development
Interpersonal relationships
Love
Psychoanalysis
Human behavior
Attachment theory
Evolutionary biology
Personal life
Technology

Chapter 14 Mendel and the Gene Idea Overview: Drawing from the Deck of Genes What genetic principles account for the transmission of traits from parents to offspring? One possible explanation of heredity is a ?blending? hypothesis The idea that genetic material contributed by two parents mixes in a manner analogous to the way blue and yellow paints blend to make green An alternative to the blending model is the ?particulate? hypothesis of inheritance: the gene idea Parents pass on discrete heritable units, genes Gregor Mendel Documented a particulate mechanism of inheritance through his experiments with garden peas Figure 14.1 Concept 14.1: Mendel used the scientific approach to identify two laws of inheritance Mendel discovered the basic principles of heredity

Genetics 1

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Monohybrid cross
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Punnett square
Dihybrid cross
genotype
Test cross
Mendelian inheritance

Mendelian Genetics All Materials ? Cmassengale? 1862 1868 1880 Genetic Terminology: Trait?- any characteristic that can be passed from parent to offspring Heredity?- passing of traits from parent to offspring Genetics?- study of heredity Alleles?- two forms of a gene (dominant & recessive) Dominant?- stronger of two genes expressed in the hybrid; represented by a?capital letter (R) Recessive?- gene that shows up less often in a cross; represented by a?lowercase letter (r) Genotype?- gene combination for a trait (e.g. RR, Rr, rr) Phenotype?- the physical feature resulting from a genotype (e.g. tall, short) Homozygous?genotype - gene combination involving 2 dominant or 2 recessive genes (e.g. RR or rr); also called?pure?

Chapter 10- Sexual Reproduction and Genetics Cont.

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Hybrid
health

Chapter 10: Sexual Reproduction and Genetics Cont. MENDELIAN GENETICS -The parent generation known as the P generation -The offspring of this P cross is calle dthe first filial (F1) generation -The second filial (F2) generation is the offspring of the F1 cross -Mendel studied seven different traits: -Seed or pea color -Flower color -Seed pod color -Seed shape or texture -Seed pod shape -Stem length -Flower position GENES IN PAIRS -Allele -An alternative form of a single gene passed form generation to generation -Dominant -Recessive DOMINANCE -An organism with two of the same alleles for a particular trait is homozygous -An organism with two different alleles for a particular trait is heterozygous GENOTYPE AND PHENOTYPE

Campbell Biology Chapter 14 Summary

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Punnett square
genotype
Phenotypic trait
Introduction to genetics
health

Chapter 14 Mendel and the Gene Idea Lecture Outline Overview: Drawing from the Deck of Genes The ?blending? hypothesis popular 1800s This hypothesis proposes that genetic material contributed by each parent mixes in a manner analogous to the way blue and yellow paints blend to make green. With blending inheritance, a freely mating population will eventually give rise to a uniform population of individuals. Everyday observations and the results of breeding experiments tell us that heritable traits do not blend to become uniform. An alternative model: the ?particulate? inheritance proposes that parents pass on discrete heritable units, genes, that retain their separate identities in offspring. Genes can be sorted and passed on, generation after generation, in undiluted form.

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