In a eukaryotic cell, within which organelle does cellular respiration occur?
a. ribosome
b. chloroplast
c. nucleus
d. mitochondria
Answer: d. mitochondria
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The features of the strain Salmonella typhimurium include the following EXCEPT:
A. It is a yeast strain. B. It is histidine auxotroph. C. It cannot grow without histidine supplements D. It can mutate to become a revertant that can grow without histidine supplements.
A mammalian female's
a. cells usually have multiple Barr bodies. b. body is a mosaic for the X-linked traits she inherits. c. Barr bodies are active in some cells. d. Barr bodies are produced after puberty. e. X-linked recessive genes are always expressed because of the deactivation of an X chromosome in each cell
Identify and briefly explain the four premises of evolution by natural selection, as proposed by Charles
Darwin. What will be an ideal response?
Some cells are very large, seemingly in defiance of maintaining a large surface area to volume ratio. What are some
strategies or adaptations that these cells may use in order to maintain a reasonable surface area to volume ratio? What will be an ideal response?