18 Aug Question: 1. How Does Sexual Reproduction Compare To DNA Transfers In Prokaryotes? I. Both Increase Genetic Diversity. II. Sexual Reproduction Results In Greater Evolutionary Change. III. DNA Transfer In Prokaryotes Allows For Fewer Errors And Mutations. A. I Only B. I And II C. I And III D. I, II, And III 2. What Type Of Receptor Is Described In The Following …
. How does sexual reproduction compare to DNA transfers in prokaryotes?
I. Both increase genetic diversity.
II. Sexual reproduction results in greater evolutionary change.
III. DNA transfer in prokaryotes allows for fewer errors and mutations.
a. I only
b. I and II
c. I and III
d. I, II, and III
2. What type of receptor is described in the following paragraph?
Binding of a signaling molecule to this type of receptor uses an enzyme to remove a phosphate group from an ATP molecule to activate another receptor. The activated receptor can be recognized by relay proteins inside the cell, which bind to the receptor and change shape. These activated proteins then trigger a transduction pathway that leads to some sort of cellular response.
a. intracellular receptor
b. ligand-gated ion channel
c. g protein-coupled receptor
d. receptor tyrosine kinase
3. Yeast cells, plant cells, and mammal cells all share many similarities in cell signaling. This provides evidence that
a. cell-signaling mechanisms are only found in organisms that use methods of sexual reproduction
b. intercellular communication evolved as a way for multicellular organisms to coordinate cell functions
c. eukaryotic cells use signal transduction pathways while prokaryotic cells use a more primitive form of signaling
d. signal transduction pathways appeared in cells before the evolution of multicellular organisms
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