Campbell Essential Biology with Physiology (5th Edition)
5th Edition
ISBN: 9780321967671
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece, Kelly A. Hogan
Publisher: PEARSON
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Chapter 9, Problem 20BS
Summary Introduction
To explain: The reason why the governmental societies are resistant to cross-breed mixing and the addressing of the genetic defects that currently plague the genetic breeds.
Introduction: The inbreeding of various species of dogs like Cavalier King Charles Spaniel causes the chances of the occurrence of diseases like heart murmurs. The cross breeding of the dogs with other non-identical varieties causes the occurrence of other diseases. The pedigree charts and phylogenetic maps should be studied. The pedigree chart analyzes the genes in the parents and offspring with the analysis of the mutations in the various lineages to study the progeny formed ahead.
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Students have asked these similar questions
our sister breeds Labradors, but is unaware of the genetics of coat color, so she has been mixing and matching various breeding pairs, unable to predict the outcomes. She recently bred two black labs, expecting to get only black lab puppies, but instead, the litter included black, brown, and yellow pups. She is confused, but since you know your genetics, you can explain to her what’s going on.
What are the genotypes of these two parents, for both of the genes involved?
What are the possible genotypes of the various offspring? (Organize them by
phenotype.)
Litters of puppies are too small for reliable statistics, but if these two parents had a large
number of puppies over time, what are the expected ratios (or fractions or percents) of the three possible coat colors?
While stuck at home in quarantine, several Bi213 students decide to conduct an experiment using
their beloved cats. These students learn that a fictional gene "H" correlates with how happy their
pets are to have their owners at home more frequently than usual. Cats that are homozygous
dominant (HH) or heterozygous (Hh) are very happy to see their owners 24/7. While cats that are
homozygous recessive (hh) are starting to miss having the house to themselves. The students
collaborate with their professors to genotype the H allele in their cats by sequencing their DNA.
They obtain the following data: 8 HH cats, 21 Hh cats, and 84 hh cats. The table below may be
helpful.
(Observed - Eaреcted)?
Σ
Еaрected
Genotype
(О— Е)
(0 – E)²
(0 – E)²/E
Observed
Еxpеcted
E
HH
Hh
hh
x² =
%3D
df =
p =
Conduct a chi-square test to determine if this population is in Hardy-Weinberg equilibrium. Enter
your chi-square with 2 decimals in the box below.
. A corn geneticist has three pure lines of genotypes a/a ; B/B ; C/C, A/A ; b/b ; C/C, and A/A ; B/B ; c/c. All the phenotypes determined by a, b, and c will increase the market value of the corn; so, naturally, he wants to combine them all in one pure line of genotype a/a ; b/b ; c/c. a. Outline an effective crossing program that can be used to obtain the a/a ; b/b ; c/c pure line. b. At each stage, state exactly which phenotypes will be selected and give their expected frequencies. c. Is there more than one way to obtain the desired genotype? Which is the best way?Assume independent assortment of the three gene pairs. (Note: Corn will self or cross-pollinate easily.
Chapter 9 Solutions
Campbell Essential Biology with Physiology (5th Edition)
Ch. 9 - The genetic makeup of an organism is called its...Ch. 9 - Which of Mendels laws is represented by each...Ch. 9 - Prob. 3SQCh. 9 - Prob. 4SQCh. 9 - Prob. 5SQCh. 9 - Prob. 6SQCh. 9 - Prob. 7SQCh. 9 - Prob. 8SQCh. 9 - Prob. 9SQCh. 9 - Prob. 10SQ
Ch. 9 - Prob. 11SQCh. 9 - Prob. 12SQCh. 9 - Incomplete dominance is seen in the inheritance of...Ch. 9 - Why was Henry VIII wrong to blame his wives for...Ch. 9 - Prob. 15SQCh. 9 - Prob. 16SQCh. 9 - Prob. 17SQCh. 9 - Prob. 18PSCh. 9 - Prob. 19PSCh. 9 - Prob. 20BSCh. 9 - Gregor Mendel never saw a gene, yet he concluded...Ch. 9 - Prob. 22BS
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