A blue, white, or yellow flower with pigments that reflect UV light is typically pollinated by ________
a. flies
b. wind
c. bees
d. bats
c
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In sweet peas, genes C and P are necessary for colored flowers. In the absence of either (__ pp or cc
__), or both (cc pp), the flowers are white. What will be the color of the offspring of the crosses in what proportions for the following? (a) Cc Pp ? cc pp (b) Cc Pp ? Cc Pp (c) Cc PP ? Cc pp (d) Cc pp ? cc Pp What will be an ideal response?
Which of the following is NOT true of LINEs and SINEs?
A. Both are non-LTR transposons. B. Both require reverse transcriptase. C. Both transcribe RNA in the nucleus. D. Both are nonautonomous elements. E. LINEs and SINEs both reintegrate by the same mechanism as all non-LTR transposons (target primed).
Alzheimer’s disease involves damage to brain neurons that release ____, while Parkinson’s disease is caused by a
shortage of the neurotransmitter ____.
a. acetylcholine; dopamine b. dopamine; acetylcholine c. norepinephrine; serotonin d. serotonin; norepinephrine e. dopamine; acetylcholine
Where does epigenetic regulation take place in a eukaryotic cell?
a. outside of the cell b. cytoplasm c. ribosome d. nucleus