Terminal bud (A) Axillary buds (B) FIGURE 5-13 (A) In these buds of pistachio, leaves are modified into bud scales, just as those of prickly pear buds are modified into spines. Bud scales are waterproof and protective, but they are shed when the bud begins to grow in the spring. There are buds in the axils of the leaves and a bud at the very tip of the shoot. B) The two axillary buds of this Viburnum have already begun to grow into branches, and their first young, expanding leaves are visible. These buds were formed in the spring and started growing immediately; they did not form dormant buds with bud scales.

selves in the offspring. The crosses are lled ssed differently in homozy- heterozygous individuals. This produces a con- dition called incomplete dominance. In such cases, both worked out in the same manner as indicated previously, but heterozygous offspring exhibit a phenotype interme- diate between that of the homozygous individuals. Some examples follow. Activity 2 Working Out Crosses Involving Incomplete Dominance 1. The inheritance of flower color in snapdragons illustrates the principle of incomplete dominance. The geno-type RR is expressed as a red flower, Rr yields pink flowers, and rr produces white flowers. Work out the following crosses to determine the expected phenotypes and both genotypic and phenotypic percentages. % of each phenotype: 2. In humans, the inheritance of sickle cell anemia/trait is deter- mined by a single pair of alleles that exhibit incomplete domi- nance. Individuals homozygous for the sickling gene (s) have sickle cell anemia. In double dose (ss), the…

Name the dark, linear, thread like structures that are in some of the onion root tip cells.  What molecule of heredity do they contain?

Pedigree Demonstrating the Inheritance of Myopia Which of the following descriptions about individual 4 of generation II is correct? Select one: OA. A female who does not have Myopia OB. A female who has Myopia OC. A male who does not have Myopia OD. A male who has Myopia