Analysis of DNA sequences from two individuals of the same species results in a greater estimate of genetic variability than does analysis of amino acid sequences from the same individuals because...
A. different DNA sequences can code for the same amino acid
B. Some amino acid variations cannot be detected b protein electrophoresis
C. DNA sequencing is more reliable technique than protein electrophoresis
D. proteins are more easily damaged than is DNA
E. DNA is more heat-sensitive and therefore varies more
Answer: A. different DNA sequences can code for the same amino acid
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If .04 percent (.0004) of the people in a population have sickle cell anemia, the percent of
heterozygotes in the population must be ____________________. Fill in the blank(s) with the appropriate word(s).
Explain the importance of checkpoints to the cell cycle
What will be an ideal response?
Which term refers to the process of transferring male gametophytes to female reproductive parts in seed plants?
a. fertilization b. pollination c. sporulation d. syngamy
The sexual reproduction of earthworms characteristically is
A. normal appearing, but individuals change sex periodically. B. hermaphroditic but cross-fertilizing. C. hermaphroditic but self-fertilizing. D. normal type between individuals who remain as males and females throughout their lifetime. E. normal appearing, but individuals reproduce only once in their lives.