In humans, X-linked genetic diseases
a. are associated with autosomes.
b. tend to be expressed more in females than males.
c. only affect males.
d. tend to be expressed more in males than in females.
d. tend to be expressed more in males than in females.
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Four of the five answers listed below are characteristic of sclerenchyma cells. Select the exception
a. sclereid b. found in seed coats c. retain the ability to divide at maturity d. have the gritty texture of pear cells e. used in the manufacturing of paper, textiles, and rope
During DNA replication in a typical human cell,
A) only one origin of replication exists for each chromosome. B) multiple origins of replication function consecutively. C) multiple origins of replication function simultaneously. D) the origins of replication are at the centromeres. E) the origins of replication are at the telomeres.
Lucy, a new Army recruit, stood in formation for long periods of time without moving an inch. She eventually became lightheaded and fainted because her blood pressure dropped. What might have caused her blood pressure to drop?
What will be an ideal response?
Which of the following organelles does NOT contain its own DNA?
A. Nucleus B. Chloroplast C. Rough endoplasmic reticulum D. Mitochondrion