Activated protein kinases can then phosphorylate a variety of intracellular proteins to elicit the cell's response to the hormone.
What will be an ideal response?
Second Messenger cAMP
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Suppose you take a cell from an adult cow and attempt to use it to produce a clone of that cow. If for
some reason telomerase is not functioning in that cell or in any cell that comes from it, what will you expect to happen with your clone?
a. The cell will never be able to divide at all. b. When the clone grows up, it will most likely have cancer. c. The cell may divide, but after a certain number of divisions, cell division will stop. d. The lack of telomerase should have no effect on the clone. e. When the clone grows up, it will most likely be sterile.
During meiosis I, homologous chromosomes undergo chiasma formation. Which of the following can happen now when the homologous chromosomes synapse or contact each other?
a. Homologous chromosomes can undergo a process by which random proteins are made via independent assortment. b. Homologous chromosomes can exchange arms with one another via DNA replication. c. Homologous chromosomes can undergo a process by which identical characteristics are simultaneously expressed. d. Homologous chromosomes can exchange arms with one another via homologous recombination.
The particulate theory of inheritance
A. preceded Mendel's research by a century. B. is based on particles or hereditary units we now call genes. C. was proposed by Mendel. D. All of the choices are correct. E. Two of the above choices are correct.
A cell containing 84 chromatids at metaphase of mitosis would produce two nuclei containing how
many chromosomes each in late telophase?
a. 168 b. 84 c. 42 d. 21 e. cannot be determined from the information given