Varied coenzyme availability increases the diversity of enzymatic reactions in both biosynthetic and catabolic pathways possible in a cell
Indicate whether the statement is true or false.
Answer: TRUE
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Imagine that a cell contains a genetic mutation in the gene encoding the primase enzyme, rendering it unable to
synthesize RNA strands. Assuming that all of the other enzymes directly involved in DNA replication are still functional in these cells, how much of the DNA replication process would you expect to see in these cells?
a. The leading strand would be synthesized, but not the lagging strand. b. No part of the DNA replication process could occur. c. The DNA helix would be unwound by helicase, but no new strands will be produced. d. Both the leading and lagging strand would be synthesized, but pieces of discontinuous strands would not be joined together. e. DNA replication would still proceed completely since RNA strands are not part of the final product of DNA replication.
Which of the following statements about the advantages of segmentation is FALSE?
a. Each segment in an animal may include a complete set of organs. b. Segmentation allows for flexibility in movement. c. Segmentation allows for control over movement. d. Segmentation allows for the animal to have a body cavity. e. A segmented animal may survive damage to organs in one segment because of redundancy in another segment.
Translation occurs in the _____.
a. cytoplasm b. lysosome c. nucleus d. Golgi apparatus e. nucleoplasm
The sex of mammals is determined by
A. the autosomes they receive. B. the type of sex chromosomes received. C. the number of recessive chromosomes received. D. None of these answers is or may be a factor.