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Question: Think about a population of one hundred mice on an island, with allele frequencies B=0.2 for black coat color and b=0.8 for white coat color. Black, B, is dominant to white, b, and the population is in HWE. 25 homozygous black mice from the mainland float to the island on an uprooted tree after a storm.What are the allele frequencies on the island after the migration event?What were the genotype frequencies before and after the migration event?Is the population still in HWE after the migration event?If not, how long will it take to get back into HWE if no more mice arrive, and if there are no other forces affecting allele frequencies?
Think about a dihybrid cross. If there are 100 progeny, approximately how many flies would you expect to be homozygous recessive for both traits?
The A species of long day plant will flower when the days are over fourteen hours long. The plant is given a daily cycle of nine hours of light followed by three periods.
give difference between the free energy change for a reation and the standard free energy change (delta-G°') for the reaction.
Independent assortment during meiosis deals with Mendel's fourth postulate. It can provide genetic diversity among gametes in meiosis as well as crossing over.
Each olfactory receptor gene is involved in detecting specific odors. However, humans are losing OR genes, while mice and other mammals have ~ 1500 such gene.
Explain why does depletion of Ca2+ from the medium through chelating agents promote isolation of cells from epithelial tissues during primary cell culture?
What everyday tasks do you think would become more challenging if Homo sapiens were full- time quadrupeds in the place of full-time bipeds? Explain the answers in details.
Contrary to the legend camels do not store water in their humps, that actually consist of a large fat deposit. How can these fat deposits serve as a source of water.
Assume you identify five members of a multi-gene family that are expressed in the same tissues. All 5 genes appear to be equally expressed in all tissues.
In a hypothetical population of sawflies, 20 percent of the population ishomozygous for allele A and 45 percent is homozygous for allele.
Discuss how does the maximum flow rate during the cough compare to the maximum expiratory flow rate during normal breathing?
Assume if you have a population, with a frequency of the p allele (A)equal to 0.25, and you apply the selection outlined below, what will be the frequency of the q allele after selection?
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