WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
5th Edition
ISBN: 9781319272531
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 10, Problem 5SA
Summary Introduction
To review:
What fixation for an allele means.
Introduction:
Fixation means that only one allele is present for a trait in a population.
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What is the percentage of the total number of gene copies the allele accounts for?
How is it possible that there are multiple different alleles in a population and yet any individual can have only two alleles?
What is an allele? Give example
Chapter 10 Solutions
WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- What Causes Random Changes in Allele Frequency ?arrow_forwardWhat describes a situation in which an allele's expression depends on the parent from which it was inherited? autosomal linkage chimerism genomic imprinting mosaicismarrow_forwardWhy is the probability of flipping a coin twice different than flipping two coin at the same time?arrow_forward
- What is the generation of allele combinations through genetic exchange between homologous chromosomes?arrow_forwardIf there are five alleles at a locus, how many genotypes can there be at this locus? How many different kinds of homozygotes can there be? How many genotypes and homozygotes can there be with eight alleles at a locus?arrow_forwardWhat happens to a recessive trait in the F2 generation in Mendelian geneticsarrow_forward
- What do you mean by dominant gene? Explain with help of example.arrow_forwardAn F2 ratio of 12:3:1 is most characteristic of a genetic interaction involving? 1) two gene loci with two alleles per locus 2) three gene loci with two alleles per each gene 3) two alleles of the same gene 4) multiple alleles of one genearrow_forwardHow are alleles of particular gene differ from each other?explain its significance?arrow_forward
- Can you always ascertain an organism ‘s genotype for a particular locus if you know its phenotype? Conversely, if you are given an organism’s genotype for a locus, can you always reliably predict its phenotype? Explain.arrow_forwardThe Andalusian fowl exhibits codominance. The genotypes and phenotypes of Andalusian fowls are shown in the diagram below. White Black Speckled Phenotype White Black Speckled Genotype WW BB BW In a small community south of Seville, the capital city of Spain, speckled hens can be sold for more money at the market then black or white hens. Which of the following rows correctly identifies the cross the farmer should perform to ensure all of his eggs produce speckled offspring AND the phenotypes of offspring produced from crossing a white hen with a speckled rooster? Select one: a. Parental cross to produce Speckled offspring Phenotypes of offspring produced from crossing a white hen and a speckled rooster BB BB White, speckled, and black offspring b. Parental cross to produce Speckled offspring Phenotypes of offspring produced from crossing a white hen and a speckled rooster WW BW White offspring c. Parental cross to produce…arrow_forwardRead in your textbook about positive assortative mating. In this example, from your text, positive assortative mating is 100% (i.e. there is no random mating). Note that the frequency of heterozygotes is cut in half each generation. Does this match your answers above? Look at the actual values make sure you understand why positive assortative mating leads to an increase in homozygosity. (a) Only heterozygotes produce heterozygote offspring, but only 50% of the time Homozygote parent for A, Heterozygote parent Homozygote parent for A, Eggs A, A, Eggs A2 A, Eggs A2 A2 A, A, A, A, A, A, A, A, A, A2 A2 A2 A2 A2 A2 A, A, A, A, A, A, A, A2 A2 A2 A2 A2 Az A2 A2 (b) Effect of extreme inbreeding (self- fertilization) over time A, A, Homozygote A, A2 Heterozygote A2 A2 Homozygote The arrows represent A, p= 0.5 offspring genotypes that are produced by each parental genotype Generation 1 Az q = 0.5 100% 25% 50% 25% 100% A, p= 0.5 Az q= 0.5 Generation 2 100% 25% 50% 25% 100% The frequencies of…arrow_forward
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