What is a genome?
A) the complete complement of an organism's genes
B) a specific sequence of polypeptides within each cell
C) a specialized polymer of four different kinds of monomers
D) a specific segment of DNA that is found within a prokaryotic chromosome
E) an ordered display of chromosomes arranged from largest to smallest
Ans: A) the complete complement of an organism's genes
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Imagine that a cell has a genetic mutation so that the primase enzyme is unable to make RNA strands
Assuming that all of the other enzymes directly involved in DNA replication are still functional in these cells, how much of the process of DNA replication would you expect to see in these cells?
a. The leading strand would be synthesized, but not the lagging strand. b. None of it at all, 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 at all. 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.
The structure indicated by the letter "C" above
represents a. actin. b. myofibril. c. myosin. d. myofilament. e. muscle fiber
What form of energy is stored within the molecules of ATP?
a. kinetic b. heat c. potential d. nuclear e. light
Gene flow is accomplished by ________
A) migration B) sexual recombination C) mutation D) natural selection