Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 17.1, Problem 3CC
Summary Introduction
To determine: The ratio of “T” to “t”allele in the F2 progeny and identify if the ratio is similar to the
Introduction: An allele is defined as a variant of a gene responsible for coding a specific character. There are atleast two different alleles for each phenotypic characteristics. One allele is dominant while the other form of the allele is recessive. The interaction between the alleles is responsible for different phenotypic traits. These interactions can produce three types of genotypes: homozygous dominant, heterozygous and homozygous recessive.
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In guinea pigs, short hair is dominant over long hair. If a short haired SS guinea pig is erossed with a long
haired ss guinea pig, what are the possible genotypes and phenotypes of their offspring and the percent
chance of each?
3.
S
Fill in the table:
Genotype
Phenotype
Chance
Direction: Answer the following problems:
1. Predict the phenotypic ratios of offspring when a homozygous white
cow is crossed with a roan bull. Illustrate using a Punnett square.
2. Complete the Punnett square for a cross between a black chicken (BB) and a
white chicken (WW). Give the phenotype of the offspring in the F1 generation.
Кey
BB – black
ww- white
F1
BW – checkered
Phenotype:
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Calibri
12
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6. Consider a guinea pig with a homozygous genotype and a white fur color phenotype.
a. What is the probability this parent will produce a gamete with the dominant
allele?
b. What is the probability this parent will produce a gamete with the recessive
allele?
C. If 31 sperm cells are collected from this guinea pig, how many would you expect
to have the recessive allele (as determined by sequencing the gene)?
!!!
Chapter 17 Solutions
Biology
Ch. 17.1 - Prob. 1CCCh. 17.1 - Prob. 2CCCh. 17.1 - Prob. 3CCCh. 17.1 - Prob. 4CCCh. 17.1 - Mendels Laws of Inheritance Concept Check: What...Ch. 17.2 - Prob. 1CSCh. 17.2 - Prob. 2CSCh. 17.2 - Prob. 1CCCh. 17.3 - Prob. 1CCCh. 17.3 - Prob. 2CC
Ch. 17.4 - Prob. 1CCCh. 17.4 - Prob. 1EQCh. 17.4 - Prob. 2EQCh. 17.4 - Prob. 3EQCh. 17.5 - Prob. 1CSCh. 17.5 - Prob. 1CCCh. 17.6 - Prob. 1CCCh. 17 - Prob. 1TYCh. 17 - During which phase of nuclear division does the...Ch. 17 - Prob. 3TYCh. 17 - Which of Mendels laws cannot be observed in a...Ch. 17 - During a __________blank, an individual with the...Ch. 17 - Prob. 6TYCh. 17 - Prob. 7TYCh. 17 - A hypothetical flowering plant species produces...Ch. 17 - Genes located on a sex chromosome are said to be...Ch. 17 - Prob. 10TYCh. 17 - Prob. 1CQCh. 17 - A cross is made between individuals having the...Ch. 17 - Core Concept: Systems We can view life as a...Ch. 17 - Discuss the principles of the chromosome theory of...Ch. 17 - When examining a human pedigree, what patterns do...
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