You discover that there are 4 alleles for the “w” gene that determines wing shape in flies.  Is this a violation of Hardy-Weinberg model? Group of answer choices Not if one of the alleles is present only in females. Not if the trait is determined by sexual selection. Not if all four alleles are present in the population. Yes, because Hardy-Weinberg can only be applied to genes with 2 alleles. None of the answers shown are correct.

Polymorphism of body color is caused by two alleles in a fly. One allele's homozygotes are brown, other homozygotes allele are pale, whereas heterozygotes have orange color. This is the observation made by the experimenters: brown: 100 pale: 100 orange: 50  find the genotype frequncy under hardy-weinberg equil. and then show the calcultaions to find the coefficient of inbredding for this locus.

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In mice, black fur (W) is dominant over white fur (w). In an ideal mouse population exhibiting Hardy–Weinberg equilibrium, 167 mice out of 225 have white fur.  Calculate the number of mice that are heterozygous dominant for the fur colour gene in the population. Show all work. Express your answer rounded to the nearest whole number:

You have two types of garden gnomes in a population. The majority are travelers, but some are home-bodies. This trait appears to be controlled by a single gene, which displays normal Mendelian complete dominance. The dominant allele is traveler (T) and the recessive allele is home-body (t). The frequency of the dominant allele is 0.70. If this population is in Hardy-Weinberg equilibrium, what is the frequency of heterozygotes in the population? Explain how you arrived at your answer.

The next several questions refer to the data given in this problem. You sample a population of leafhoppers and genotype 250 individuals at a polymorphic locus with two alleles. You obtain the following numbers: AA = 68 individuals Aa = 54 individuals aa = 128 individuals What is the frequency of the A allele? (You may round your answer to 2 decimal places) What is the expected number of individuals with the AA genotype if the population is in Hardy Weinberg equilibrium? (You may round your answer to the nearest whole number) What is the expected number of individuals with the Aa genotype if the population is in Hardy-Weinberg equilibrium? (you may round your answer to the nearest whole number)

A species of butterfly shows variation in the length of the antennae. You measure antennae in a butterfly population and find the mean to be 15 mm. You calculate a heritability of antennae length to be 1 (h2 = 1). %3D That summer, there is a severe drought. Many of the butterflies die and only a few survive to reproduce. The surviving butterflies have a mean antennae length of 17 mm. a) What is the predicted mean limb-length of the offspring of the surviving butterflies? [ Select ] b) What type of selection was acting on antennae length in these butterflies? [ Select ] c) Five years later, you go back and measure antennae length in this butterfly population again. Every butterfly in the population has antennae measuring 16 mm. What is the heritability of antennae length in this population now? [Select ]

The following gel represents a result of the RFLP experiment you designed using the DNA of 9 different individuals (this is your population). The ladder used is a 50bp ladder and is loaded in the first well.   1. What is the percentage of non-tasters in this population? 2. What is the percentage of heterozygous in this population? 3. What is the frequency of nontaster allele in this population? 4. What is the frequency of the taster allele in this population?

You sample a fruit fly (Drosophila melanogaster) population for the alcohol dehydrogenase (Adh) gene. There are two alleles, designated A₁ and A2, for this locus in this population. The data you collected is shown in this table (this is your observed data). Is this population in Hardy-Weinberg equilibrium at this locus? To save you time, I have calculated the expected number of individuals for each genotype and included them in the table. For your answer, you should provide: • an answer to the question: Is this population in Hardy-Weinberg equilibrium for this locus? • the value of your chi-square result you based this answer on (you do not have to show your calculations for the homework, but you would on an exam) • (if you say the population is NOT in HW equilibrium) an evaluation of which genotype(s) are more or less common than expected in the observed population # individuals genotype A₁A₁ # individuals genotype A₁A2 # individuals genotype A₂A2 154 117 Observed data Expected data…

You are performing a series of experiments on fruit flies.  You have a true breeding population of flies with red eyes, and a true breeding population of white eyes.  You breed the population of flies to each other to get an F1 generation.  In this F1 generation, 75% of the flies have Red eyes, 25% of the flies have white eyes.   All the female flies have red eyes, half of the male flies have white eyes and the other half have red eyes. A statistically significant number of baby flies were produced in this cross. 1) What is that number? 2) What is the genotype ratio of the F1 generation?  Give the genotypes.