BIOLOGY: HOW LIFE WORKS (LOOSE-LEAF)
3rd Edition
ISBN: 9781319449568
Author: Morris
Publisher: MAC HIGHER
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Chapter 20.2, Problem 6SAQ
Summary Introduction
Mutation is whether neural, deleterious, and advantageous and it is the source of variation in hereditary. Generating inferences about the process of evolution from the
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BIOLOGY: HOW LIFE WORKS (LOOSE-LEAF)
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- a population has 700 individuals, 85 of genotype AA, 320of genotype Aa, and 295 of genotype aa. What are thefrequencies of alleles A and a?arrow_forwardWhat is a Mendelian population? How is the gene pool of a Mendelian population usually described?arrow_forwardWhile studying the frequency of sickle-cell disease ("sickle cell anemia") in a population living in sub-Saharan Africa, you obtain the following data from a sample of n= 100 people (note that I chose a simpler system for identifying the alleles rather than using "Hb S" for sickle cell allele), which is the actual name and what you used in lab). What is the frequency of the sickle cell allele (b) in the sample below from a human population? Sample Data BB-60 individuals (No sickle cell disease) Bb-30 individuals (No sickle cell disease) bb-10 individuals (Sickle cell disease) 1. 0.25 2. 0.10 3. 0.35 4. 0.60 5. 0.20arrow_forward
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- In a certain population of frogs, 120 are green, 60 are brownish-green, and 20 are brown. The allele for brown is denoted GB, and the allele for green is designated GG. These two alleles are incompletely dominant to each other. What is the frequency of genotype GGGG in this population?arrow_forwardCystic fibrosis is an autosomal recessive disorder that affects 1 in 3 000 newborns with Caucasian background. It causes thick mucus build up in various organs and can cause damages and problems in respiratory and digestive systems. a) What is the frequency of the cystic fibrosis allele in the Caucasian population? 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 Caucasian population would be carriers for cystic fibrosis? Show all your work and express your answer rounded to two decimal places. c)If two individuals are carriers of the cystic fibrosis allele, what is the probability that they would have a girl without cystic fibrosis? Show all your work (including the Punnett square) and express your answer as a value between 0 and 1 rounded to two decimal places.arrow_forwardFor a gene existing in two alleles, what are the allele frequencies when the heterozygote frequency is at its maximum value, assuming Hardy-Weinberg equilibrium? What if there are three alleles?arrow_forward
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