UNL U LU S IVE SCIENCE ZAUVallcall Predicting Heredity Quiz Active TIME REMAINING 58:00 Tall plants are dominant over short plants. One parent is homozygous dominant and the other is heterozygous for plant height. Which would most likely be the resulting phenotype of the offspring?
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.