A trait that is masked or hidden unless there are two is called ... (Mendelian Genetics Notes)

(1 Point)

an allele

recessive

dominant

incomplete dominant

As a small change in a person's dna can cause a genetic disorder

When the cell concentrates potassium within, against the natural tendency of matter, it is performing a.passive diffusion b.facilitated diffusion c.active transport d.pinocytosis

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.