What is a type of master gene that controls the formation of body parts during development?
a. control gene
b. gradient gene
c. differentiation gene
d. developmental gene
e. homeotic gene
e
You might also like to view...
When a population is small relative to its carrying capacity, its growth will be:
A. geometric. B. exponential. C. logistic. D. both geometric and exponential. E. both geometric and logistic.
Why is the production of transgenic plants somewhat easier than the production of transgenic animals?
A. Plant cells are pluripotent. B. Plant cells are more stable than animal cells. C. Plant cells are totipotent. D. Plant cells are more highly evolved. E. Plant cells readily take up vectors, whereas animal cells do not.
What type of channel opens in response to changes in ionic charge across a membrane?
a. an electric-gated channel b. a charge-gated channel c. a ligand-gated channel d. a voltage-gated channel
The sun shining on a tidal pool during a hot day heats the water. As some water evaporates, the pool becomes saltier, causing _____
A) an increase in its carbon dioxide content B) a decrease in its oxygen content C) an increase in its ability to sustain aerobic organisms D) a decrease in the water's density