- the recessive allele frequency is represented by
- A population's response to selection is greater when allele is common then rare. this means A) In one generation. the change in frequency of a lethal allele will be greater when the allele is common B) In one generation, the change in frequency of a lethal allele will be greater when the allele is rare.
- A gene that has evolved under positive selection show:
- p^2+2pq+q^2 represents: A) the allele frequencies of a diploid autosomal geneB)the genotype frequencies of a diploid autosomal gene
- some populations have a high frequency of homozygous genotypes. which of the following would be associated with this outcome? A) this is a population where negative assortative mating has been important. b) the population has probably been through a bottleneck c) this population cannot be in Hardy- weinberg equilibrium D) this is a large population
- which of the agents of microevolution tend to make populations in different environments more alike in allele frequency?
- There is strong selection against young banded Water Snakes on islands in the great lakes. Nonetheless, the island populations remain polymorphic. In this example, scientist have found:
- if a population is in hardy-weinberg equilibrum, and the frequency of one allele is 0.75, what is the frequency of heterozygotes?
- all genetic variation ultimately arises from ___
- when a population is Hardy-Weinberg equilibrum, which is not changed? number of alleles, frequency of selection, frequency of alleles , number of individuals of individuals
- which organism has the fastest mutation rate?
- In coding gene, more mutations in the first and second position of the codons ____are compared to the number in the third position
- A hypothetical population has two alleles for a gene: A and a. in a random sample of 100 individuals, 20 are homozygous for the "A" allele, 60 are heterozygous, and 20 are homozygous for the "a" . what is the frequency of A?
- which of the below situations is an example of gene flow?
- there are five main mechanisms of evolutionary change. which mechanism is the only one below that relies on only adaptive evolutionary change? Mutation, non-random mating, genetic drift, natural selection
- A trait that confers a greater level of fitness, relative to those who lack it, is called an
- Muscular Atrophy is a devastating disease but can be found at surprising high frequencies in European population. What explanation is given for the maintenance of this polymorphism?
- when gene flow is happening between two different populations with very different allele frequencies, what is likely results?
- In the "smelly t-shirt experiment" females preferred males that carried alleles at the Major Histocompatibility complex that differed from their own. This promotes:
- In a species of Jewel Beetle, you find that individuals with the AA genotype produce 100 offspring on-average, individuals with AB produce 75, and individuals with BB produce 50. what is the relative fitness for each genotype (AA:AB:BB)?