Let P: Aa(yellow) x Aa(blue). Acquired the F1 hybrid. Continue for SELF-pollinating F1. Determine the gene rate and the phenotype ratio of F2.

Drag the tiles to the correct boxes to complete the pairs. match the nitrogenous base of dna with its complement.

How does photosynthesis show the conservation of mass and energy?

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.