In some guinea pigs, having hair is associated with the presence of a dominat allele "H". Hairless guinea pigs do not have the dominant allele"H". This is a mendelian trait. 1. Show a punnett square with a mendelian cross between two guinea pigs that are Hh x Hh.

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.

In which part of the body is a ball-and-socket joint found?

The data below simulate what happened to peppered moths in england after the industrial revolution which statement best describes the process that produced one of the emding populations of moths ?light colored moths were selected for on light colored trees