The structure of human cytochrome c is the same as that of chimpanzees, but it differs from the structure of cytochrome c in chickens by 16 amino acids and in yeast by more than 50 amino acids
From these data, one could hypothesize that humans are most closely related evolutionarily to A) chimpanzees.
B) yeast.
C) dogs.
D) chickens.
E) chimpanzees, chickens, and yeast equally because they all have cytochrome c.
A
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Which of the following statements is true regarding neurotransmitters and synaptic signaling? Select all correct choices
A. All neurotransmitters are also hormones. B. All synaptic signaling is rapid. C. All synaptic signaling occurs between nerve cells. D. All neurotransmitters are released into the blood stream.
A scientist might create a conditional knockout of a mouse gene when
A) a homozygous loss-of-function mutation in the gene causes embryonic lethality. B) a homozygous loss-of-function mutation in the gene produces a wild-type phenotype. C) a homozygous loss-of-function mutation in the gene affects only ears. D) a homozygous loss-of-function mutation in the gene affects only coat color.
Each of the following statements accurately describes the Calvin cycle except
A) It is found in all oxygenic and most anoxygenic phototrophs. B) Carbon dioxide is fixed by reduction to form organic sugars. C) Its products enter a variety of metabolic pathways including sugar and starch biosynthesis. D) It involves ribulose-1,5-bisphosphate (RuBP). E) It is confined to the cytoplasm in plants and algae.
carbonates
What will be an ideal response?