I need answer of the questions without an explanation just a letter. If my answe

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I need answer of the questions without an explanation just a letter. If my answer is right, don't mention it only for my wrong answer I circled

25. There are two alleles in a population: A and B, with a frequency of 80% and 20%. respectively. If the population is in Hardy-Weinberg equilibrium, what percentage of individuals would have the BB genotype? a, 64% b, 20% 40% d, 80% 26. A dolphin is a mammal, a shark is a fish, and a penguin is a bird. Yet all have similar streamlined body shapes because they live in and move through the ocean. This similarity is called: a. Convergent evolution b. Sexual selection (c) Aquatic selection Homology e. Genetic drift 27. Darwin's finches on the Galapagos Islands rapidly diversified into many species from a single common ancestor. This process is called: a. A species explosion b. Allopatric speciation Genetic drift d. Sexual selection e. An adaptive radiation 28. The Grand Canyon has physically separated the two species ofsquirrels living on the North and South rims of the canyon. These two species have undergone: a. Sympatric speciation b. Punctuated equilibrium c. Allopatric speciation Domestication e. Convergent evolution 29. A man with type AB blood marries a woman with type A blood. They have four children, each with a different blood type. On the Maury show, she confesses to an affair. Which child is definitely NOT his? b, AB e. They all could be his 30. A horse and donkey can mate and produce a mule. The mule, while viable, is sterile. Which of the following isolating mechanisms are in effect to keep the horse and donkey separate species? a. Postzygotic isolation b. Habitat isolation c. Temporal isolation d Gametic isolation e. Behavioral isolation 31. Cacti and are two classes of plants. They are not related another, both live in deserts and to the casual to one but a. observer are indistinguishable from one another. These similar traits are best described as: Homologous traits b, Medial traits c. Pleiotropic traits d. Analogous traits (e) Mosaic traits

Explanation / Answer

25.b. 20%

frequency of homozygous allele is= q^2

Where q= allele

q^2 =BB= 20%

26. a Convergent evolution

In Convergent Evolution similar phenotypes evolve independently in distantly related species. example, flight has evolved in both bats and insects.

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