Which of the following is true of embryo cloning?
a. It occurs all the time in nature.
b. It involves the genetic contribution of only one
parent.
c. It produces identical offspring.
d. “Artificial twinning” is a laboratory application
of the process.
e. All of these are true.
Answer: e
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How many rounds of cell division occur in meiosis?
a. 0 b. 1 c. 2 d.3
Cholesterol ____.
A. has a rigid backbone of four nitrogen rings B. is the most common steroid in animal tissue C. is a lipid with a fatty-acid component D. is needed to inhibit sexual development and maturity E. is needed to lubricate feathers
If you knew the sequence of nucleotides within a gene, which one of the following could you determine with the most accuracy?
A) the primary structure of the protein B) the secondary structure of the protein C) the tertiary structure of the protein D) the quaternary structure of the protein E) The answer cannot be determined based on the information provided.
How many kinds of gametes will be expected from an individual with the genotype PpCcTTRr?
A) 2 B) 16 C) 1 D) 8 E) 4