In a monohybrid cross
a. only one trait is being considered.
b. the parents are always dominant.
c. the parents are always heterozygous.
d. no hybrid is produced.
a
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Protein kinases are enzymes that normally catalyze the
A) degradation of cellular proteins. B) phosphorylation of cellular proteins. C) formation of peptide bonds in proteins. D) phosphorylation of ADP. E) synthesis of kinins.
Water molecules are cohesive because they
A) form hydrogen bonds. B) stick to other polar molecules. C) make up 60% to 90% of an organism's body weight. D) contain protons. E) are repelled by nonpolar molecules.
Only about ________ of the sunlight falling on plant leaves is captured by photosynthesis.
A. 50% B. 1% C. 25% D. 10%
Long chain carbohydrates such as glycogen are composed of many single units of:
A) monosaccharides. B) nucleotides. C) amino acids. D) fatty acids. E) glycerol.