Which of the following is true of DNA polymerase I?
A. It carries out lagging strand synthesis.
B. It does not require the presence of a 3'-OH in order to initiate synthesis of DNA.
C. It is responsible for RNA primer removal and replacement with DNA nucleotides.
D. It seals the gaps or nicks produced during lagging strand synthesis.
E. All of these choices are correct.
C
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Answer the following statements true (T) or false (F)
1. If resources are increased, carrying capacity increases. 2. K-selected populations reproduce quickly. 3. Exponential growth is rare because resources are usually limiting. 4. Slow-growing oak trees are r-selected compared to dandelions.
Mutations can affect hormone receptors in the following ways, except for which statement?
A. Result in missing or defective receptors B. Alter the rate of production of receptors C. Affect the response to a hormone D. Decrease the level of hormones in their vicinity E. Alter the binding site of receptors
What is the site of fetal metabolic waste processing?
A. Fetal Liver & Kidneys B. Fetal Spleen C. Maternal Liver & Kidneys D. Maternal Spleen E. Placenta
Transfer of random pieces of DNA mediated by phage is known as
A. transformation of competent cells. B. generalized transduction. C. conjugation. D. transposition. E. specialized transduction.