A seed contains an embryo mutant for gibberellic acid (GA) receptors. What phenotype would you expect to result in the seedling?
A. No mutant phenotype until the plant is older.
B. Malformed cotyledons due to defects in development.
C. Yellow instead of green due to chloroplast failure.
D. Poor growth due to unusable nutrient reserves.
Answer: D
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How many ATP and NADH molecules are produced from each molecule of glucose in the citric acid cycle only?
A. 4 ATP, 2 NADH B. 3 ATP, 4 NADH C. 2 ATP, 6 NADH D. 1 ATP, 2 NADH E. 0 ATP, 6 NADH
How does the blister rust impact the Yellowstone ecosystem?
a. It reduces the availability of whitebark berries. b. It reduces the numbers of grizzly bears. c. It reduces the numbers of gray wolves. d. all of these
"DNA fingerprint" information indicates that you have two different versions of the allele for a particular skin protein. These alleles are called
A. homozygous. B. recessive. C. heterozygous. D. dominant. E. homologous.
Which mutations can interfere with the proper insertion of a protein in the plasma membrane?
A. a nonpolar amino acid to a polar amino acid within a transmembrane domain B. a polar amino acid to a nonpolar amino acid within a cytoplasmic domain C. a nonpolar amino acid to a polar amino acid within a cytoplasmic domain D. a polar amino acid to a nonpolar amino acid within a transmembrane domain