Avatar for Sourav Pan
Sourav Pan
10 Sep 2024

A survey reveals that 25 percent of a population of 1,000 individuals have attached earlobes (are homozygous recessive for the trait). What is the frequency of the recessive allele? a) √0.75 b) 0.75 c) √0.50 d) √0.25 e) 0.25

A survey reveals that 25 percent of a population of 1,000 individuals have attached earlobes (are homozygous recessive for the trait). What is the frequency of the recessive allele? a) √0.75 b) 0.75 c) √0.50 d) √0.25 e) 0.25

Avatar for Sourav Pan 1 Answer
Avatar for Sourav Pan
Sourav Pan
10 Sep 2024

Scientists are studying several populations of finches on neighboring islands in the South Pacific. Previous genetic analysis has shown that a single gene controls tail-feather length in the finch populations and that the allele for long tail feathers (L) is dominant to the allele for short tail feathers (l). On two separate islands, the scientists recorded the number of finches with long tail feathers and the number of finches with short tail feathers. The results are shown in the table below. If the two finch populations are each in Hardy-Weinberg equilibrium and are isolated from each other, then which of the following graphs correctly displays the relative genotype frequencies? (Options not provided in the text)

Scientists are studying several populations of finches on neighboring islands in the South Pacific. Previous genetic analysis has shown that a single gene controls tail-feather length in the finch populations and that the allele for long tail feathers (L) is dominant to the allele for short tail feathers (l). On two separate islands, the scientists … Read more

Avatar for Sourav Pan 1 Answer
Avatar for Sourav Pan
Sourav Pan
10 Sep 2024

All of the following are examples of prezygotic genetic isolating mechanisms EXCEPT: a) Male fireflies of different species have differing flash patterns. b) Three closely related orchid species flower on different days. c) The progeny of a cross between two different lizard species fail to develop properly. d) One species of snake lives in water and another is terrestrial. e) Peeper frogs mate in April, and tree frogs mate in June.

All of the following are examples of prezygotic genetic isolating mechanisms EXCEPT: a) Male fireflies of different species have differing flash patterns. b) Three closely related orchid species flower on different days. c) The progeny of a cross between two different lizard species fail to develop properly. d) One species of snake lives in water … Read more

Avatar for Sourav Pan 1 Answer
Avatar for Sourav Pan
Sourav Pan
10 Sep 2024

The appearance of a fertile, polyploid individual within a population of diploid organisms is a possible source of a new species. If this individual is capable of reproducing to form a new population, scientists would consider this to be an example of a) allopatric speciation b) sympatric speciation c) polygenic inheritance d) genetic drift e) Hardy-Weinberg equilibrium

The appearance of a fertile, polyploid individual within a population of diploid organisms is a possible source of a new species. If this individual is capable of reproducing to form a new population, scientists would consider this to be an example of a) allopatric speciation b) sympatric speciation c) polygenic inheritance d) genetic drift e) … Read more

Avatar for Sourav Pan 1 Answer
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