Which of the following synthesis short segments of RNA?

A) helicase
B) DNA polymerase III
C) ligase
D) DNA polymerase I
E) primase


Ans: E) primase

Biology & Microbiology

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Which of the following would be present in highest numbers in the indigenous microflora of the human mouth?

A) a-Hemolytic streptococci B) b-Hemolytic streptococci C) Candida albicans D) Staphylococcus aureus

Biology & Microbiology

Which of the following events must occur to cause a chromosomal translocation, such as that seen in individuals with chronic myelogenous leukemia (CML)?

A. One chromosome must break in two distinct locations. B. Two different chromosomes must break. C. A transposon must be present in one of the chromosomes. D. The broken ends must pair correctly. E. A mutation in the DNA must occur.

Biology & Microbiology

What event most directly precedes the activity illustrated in Figure 40-5?


a. depolarization
b. an action potential
c. acetylcholine release from a motor neuron
d. release of calcium from the sarcoplasmic reticulum
e. release of ADP from the myosin head

Biology & Microbiology

The genetic code is ________

A) our DNA - what makes us who we are B) our genome C) the complementary base-pairing of A going with T and C going with G D) what allows codons to be translated into amino acids

Biology & Microbiology