Introduction to Genetic Analysis
11th Edition
ISBN: 9781464109485
Author: Anthony J.F. Griffiths, Susan R. Wessler, Sean B. Carroll, John Doebley
Publisher: W. H. Freeman
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Chapter 3, Problem 2P
Summary Introduction
To determine: The meiotic stage responsible for generating Mendel’s second law.
Introduction. Law of segregation proposes that the alternative forms of the genes that are known as alleles separate during the formation of gametes. These gametes get one of the alleles that constitute the gene. Thus, during the formation of the zygote, these independent gametes come to fuse together to provide the allele pair to the offspring.
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Part 1: Make a three part process drawing (like a cartoon strip) to
demonstrate Mendel's Principle of Segregation. Use two parents with
homologous chromosomes marked with alleles "A" and "a".
Circle and label these three action parts of the Principle of Segregation: a)
parents are diploid, b) alleles separate to form haploid gametes (indicate
when this happens), and c) gametes from each parent combine at random
to form diploid offspring
Part 2: Use the cross Aa x Aa and a Punnett square to demonstrate
Mendel's Principle of Segregation. Circle and label these three action parts
of the Principle of Segregation: a) parents are diploid, b) alleles separate to
form haploid gametes and c) gametes from each parent combine at
random to form diploid offspring.
Part 3: Use homologous chromosomes marked with alleles "A" and "a" and
a second pair of homologs marked with alleles "B" and "b". to demonstrate
Mendel's Principle of Independent Assortment in cells in Meiosis. Indicate
what phase this…
Part 1: Make a three part process drawing (like a cartoon strip) to demonstrate Mendel’s Principle of Segregation. Use two parents with homologous chromosomes marked with alleles “A” and “a”.
Circle and label these three action parts of the Principle of Segregation: a) parents are diploid, b) alleles separate to form haploid gametes (indicate when this happens), and c) gametes from each parent combine at random to form diploid offspring
Part 2: Use the cross Aa x Aa and a Punnett square to demonstrate Mendel’s Principle of Segregation. Circle and label these three action parts of the Principle of Segregation: a) parents are diploid, b) alleles separate to form haploid gametes and c) gametes from each parent combine at random to form diploid offspring. Write the expected genotypic and phenotypic ratios.
When Gregor Mendel was working in the mid 1800s, scientists had not yet discovered chromosomes or meiosis. However, we now understand how Mendel's principles are rooted in the events of meiosis. As an example of this, state Mendel's principle of independent assortment and explain how it relates to independent assortment in meiosis.
Chapter 3 Solutions
Introduction to Genetic Analysis
Ch. 3 - Prob. 1PCh. 3 - Prob. 2PCh. 3 - Prob. 4PCh. 3 - Prob. 5PCh. 3 - Prob. 6PCh. 3 - Prob. 7PCh. 3 - Prob. 10PCh. 3 - Prob. 11PCh. 3 - Prob. 12PCh. 3 - Prob. 13P
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- Mendel's Law of Independent Assortment states that: the members of a pair of homologous chromosemes assort independently of each other during gamete formation none of these the members of a pair of homologous chromosomes separate from each other during gamete formati different pairs of homologous chromosomes assort independently of each other during gamete formation different pairs of homologous chromosomes separate from each other during gamete formationarrow_forwardVermillion eye color in Drosophila is a sex-linked recessive trait. What phenotype would be found in this progeny of a cross between a vermillion female and a wild type male?arrow_forwardVermillion eye color in Drosophila sp. is a sex-linked recessive trait. What phenotype would be found in this progeny of a cross between a vermillion female and a wild type male?arrow_forward
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