According to the current theory of antibody formation
A. gene clusters are identical in all antibody-forming cells.
B. antibody gene clusters are closely linked.
C. gene fusion accompanies B cell maturation.
D. each B cell can make many types of antibodies.
E. all germ cells carry only one V gene.
C
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The genome of Pelagibacter ubique ________.
A. is the smallest one thus far sequenced for a non-parasitic bacterium B. has a very limited number of nucleotides between coding regions C. contains no pseudogenes D. All of the choices are correct.
How many hydrogen bonds can a water molecule form?
A. 1 B. 2 C. 3 D. 4 E. 5
The first intelligence tests, developed in the late 19th century, tested a person's
A) mathematics and verbal skills. B) sensory perception and reaction time. C) problem-solving and logic skills. D) hand-eye coordination.
In mRNA, one of three triplets (UAG, UAA, UGA) that signal gene translations to stop
What will be an ideal response?