What is the most likely explanation of how 14 genes for globins, each specialized in their function (i.e., hemoglobin, myoglobin), arose in the genome of animals?
A. misaligned crossover and gene mutation
B. misaligned crossover
C. gene deletion
D. gene mutation
E. misaligned crossover and gene deletion
Answer: A
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Essential fatty acids, which are required in the human diet, are
A) those fatty acids that humans are unable to synthesize. B) the fatty acids that humans can synthesize from simpler molecules. C) the fatty acids used in the construction of the phospholipids of cell membranes. D) stored in the gallbladder.
To avoid using controversial embryonic stem cells, scientists have learned to reprogram fully differentiated adult cells and return them to a pluripotent state
A. true B. false
In a cross of Ss x Ss, the probability of having a heterozygous genotype is
A. 3/4. B. 1/4. C. 1/3. D. 2/3. E. 1/2.
Reliability:
What will be an ideal response?