Biological Science
5th Edition
ISBN: 9780321743671
Author: Scott Freeman
Publisher: PEARSON
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Chapter 26, Problem 11TYU
Summary Introduction
To review:
The allele which increases the reproductive success in elephant seal will increase its frequency faster in males or in females of the population.
Introduction:
In the population of elephant seals the phenomenon of sexual selection is observed in which the females prefer and choose a fittest male partner for providing parental care and fertile offsprings.
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Students have asked these similar questions
Salamanders have a male heterogametic system for sex determinations where females are ZZ and males are ZW. The allele for the color of the tail is sex linked and the red allele is found on the W chromosome and the blue allele is found on the Z chromosome. You mate a male and female and they have 3 female offspring. What is the phenotypic ratio for tail color for their offspring?
Group of answer choices
2 Blue : 1 Red
0 Blue : 3 Red
1 Blue : 2 red
3 Blue : 0 Red
In garden pea plants, the yellow seed colour (Y) is dominant over the green seed colour (y). In a population of 24 pea plants, 15 pea plants are homozygous dominant, 6 are heterozygous dominant, and 3 are recessive. Find the frequency of the following YY, Yy, yy. Show all work and record your response using three significant digits.
The agouti gene determines coat colour in mice. Heterozygous mice have yellow coats, while homozygous dominant mice have black coats. However, having two copies of the recessive alleles is lethal. In a population of 2 000 mice, 1 082 mice have black coats.
a) Calculate the frequency of each allele. Show all your work and express your answer as a value between 0 and 1 rounded to two decimal places.
b) What percentage of the mouse population is expected to be carriers of the lethal allele? Show all your work and express your answer rounded to one decimal place.
c) How many mice will die during fetal development? Show all your work and round your answer to the closest whole number.
Chapter 26 Solutions
Biological Science
Ch. 26 - PROCESS OF SCIENCE In what sense is the...Ch. 26 - 2. Why isn’t inbreeding considered an evolutionary...Ch. 26 - 3. CAUTION Why is genetic drift aptly named?
a. It...Ch. 26 - Prob. 5TYKCh. 26 - 5. QUANTITATIVE In a population of 2500, how many...Ch. 26 - 7. CAUTION Determine what is incorrect in the...Ch. 26 - Prob. 12TYUCh. 26 - QUANTITATIVE In humans, albinism is caused by...Ch. 26 - What does it mean when an allele reaches fixation?...Ch. 26 - Prob. 6TYK
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