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
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Most carbon dissolved in the ocean is in the form of
a. carbon dioxide. b. carbon monoxide. c. carbonic acid. d. bicarbonate and carbonate. e. carbon tetrachloride.
Part of a chromosome breaks away and attaches to a nonhomologous chromosome
a. Crossing-over b. Inversion c. Translocation d. Nondisjunction e. Deletion
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%
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.