Researchers have crossed two true-breeding lines of peas that differ in the color of their leaf tissue: dark green vs pale green. After selfing the resulting F1s to produce an F2 population, they characterized the phenotypes for 200 F2 individuals and report 122 dark and 78 pale plants. You want to test the for the possibility that the dark phenotype is determined by a dominant allele at a single locus. Using that as your null hypothesis, how many of the 200 F2 individuals would you have expected to be dark

6. in domesticated cats, the following are independently assorting: normal ears (t) is dominant to tufted ears (t); curved whiskers (c) is dominant to straight whiskers (c); the presence of six toes (s) is dominant to five toes (s); gene for hair length is an x-linked codominant. the three phenotypes for hair length are long (xhxh), medium (xhxh), and short (xhxh); medium is the heterozygous condition. given two parents: ttccssxhxh x ttccssxhy how many different gametes could be formed in the female cat with respect to these four traits? how many phenotypes are possible in the offspring from this mating?