Red-green color blindness is an X-linked recessive
trait in humans. What is the probability that a colorblind
woman and a man with normal vision will have
a color-blind daughter?
a. 100%
b. 75%
c. 50%
d. 25%
e. 0%
Answer: e
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Why is the smooth endoplasmic reticulum unable to synthesize proteins?
A) No ribosomes are attached to its surface. B) There is no supply of free amino acids that it can easily access. C) It stores calcium, which is a known inhibitor of protein synthesis. D) It has no DNA to direct synthesis of proteins.
Most drugs that inhibit the synthesis of the cell wall act by
A) preventing the cross-linkage of NAM subunits. B) blocking the secretion of cell wall molecules from the cytoplasm. C) preventing the formation of alanine-alanine bridges. D) disrupting the formation of the mycolic acid layer of the cell wall. E) preventing the formation of ?-lactamases.
Which of these describes a genetically modified organism?
A) an organism that divides asexually B) an organism that can mate with any other species because of DNA technology C) an organism that has been genetically altered for agricultural applications D) an organism that has at least one gene from another species inserted into its DNA E) corn that no longer resembles ancestral corn due to many generations of selective breeding
Innate, physical barriers of host defenses ______. Select All That Apply
Fill in the blank(s) with the appropriate word(s).