The X-inactivation center gene is
A) SRY.
B) XIC.
C) Xce.
D) MATa.
E) Xist.
B
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How many carbon atoms does deoxyribose have?
A. 4 B. 5 C. 6 D. 7 E. 8
A whole organism clone is a clone of the organism that:
A) provides the egg cell from which the nucleus is removed. B) provides the nuclear (diploid) DNA. C) serves as the surrogate mother and carries the fetus to term. D) provides the (haploid) sperm cell. E) fertilizes the egg cell.
In some mammals, what is the by-product of digestion that is produced in the stomach, and in which animals may it be produced in large quantities?
a. methane, in carnivores b. methane, in ruminants c. mucus, in ruminants d. mucus, in carnivores
During translocation, the movement of the ribosome repositions the tRNA linked to the growing polypeptide chain to
the ____ site, thereby vacating the ____ site for the arrival of a new amino-acyl tRNA. a. A; P b. P; A c. initiation; termination d. large ribosomal subunit; small ribosomal subunit e. small ribosomal subunit; large ribosomal subunit