In garden peas, one pair of alleles controls the height of the plant, and a second pair of alleles controls

flower color. The allele for tall (D) is dominant to the allele for dwarf (d), and the allele for purple (P)
is dominant to the allele for white (p). A tall plant with white flowers crossed with a dwarf plant with
purple flowers produces all tall offspring with purple flowers. What is the genotype of the parents? What will be an ideal response?


DD pp ? dd PP

Biology & Microbiology

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Part of a chromosome breaks away and attaches to a nonhomologous chromosome

a. Crossing-over b. Inversion c. Translocation d. Nondisjunction e. Deletion

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Several sets of percentage of DNA bases that make up the genome are listed below. Which set is correct?

A) A: 10%, T: 30%, G: 40%, C: 20% B) A: 30%, T: 40%, G: 20%, C: 10% C) A: 30%, T: 30%, G: 20%, C: 20% D) A: 20%, T: 20%, G: 50%, C: 10%

Biology & Microbiology

The common characteristic of Alveolata is

A. silica covering. B. funnel-shaped, contractile collar. C. a single, unique mitochondria. D. presence of a plasmodium. E. a layer of flattened vesicles beneath the plasma membrane.

Biology & Microbiology