In which assisted reproductive method is a single sperm injected into an egg?
a. ART
b. intracytoplasmic sperm injection
c. zygote intrafallopian transfer
d. artificial insemination with embryo transfer
e. gamete intrafallopian transfer
ANSWER: b
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Mutations occur:
A. in every cell. B. in somatic cells, but not in germ line cells. C. in germ line cells, but not in somatic cells. D. during development but not during adulthood.
Reticulate and elementary bodies are two forms of
A. Mycoplasma. B. Caulobacter. C. Chlamydia. D. Myxobacteria.
How might a plant cell compensate for the excessive membrane fluidity that occurs during prolonged exposures to elevated temperature?
A. Reduce membrane cholesterol content. B. Alter the lipid composition to have longer phospholipid tails and fewer double bonds. C. Alter the lipid composition to have shorter phospholipid tails and more double bonds. D. Alter the lipid composition to have shorter and more unsaturated phospholipid tails. E. Reduce cholesterol content and alter the lipid composition to have shorter phospholipid tails.
The region of the frontal lobe that controls voluntary movement is called the:
a. motor region b. voluntary cortex c. primary motor cortex d. somatosensory cortex e. primary auditory cortex