Genes encoding the blood proteins myoglobin and hemoglobin are derived from a common gene ancestor. These proteins both occur in humans. The genes for myoglobin and hemoglobin are
A. analogs.
B. topologs.
C. paralogs.
D. orthologs.
E. pentalogs.
C. paralogs.
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The rate of killing by an antimicrobial agent may slow when the microbial population has been greatly reduced because the remaining population may have a high proportion of resistant organisms.
Answer the following statement true (T) or false (F)
How many kinds of gametes will be expected from an individual with the genotype PpCcTTRr?
What will be an ideal response?
Most of the ultraviolet radiation reaching the upper atmosphere is absorbed by
A. CFCs. B. water vapor. C. ozone. D. carbon dioxide. E. nitrogen.
A trait in which the heterozygotes have a phenotype that is intermediate between the dominant and recessive phenotypes is an indication of
a. codominance. b. pleiotropy. c. a sex-linked trait. d. incomplete dominance. e. None of these are correct.