Which of the following give a flower its colour?
a. petals
b. sepals
c. anthers
d. stigma
Ans: a. petals
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A human mother’s genes seem to influence brain development while a human father’s genes seem to influence growth. What does this imply?
A. The mother imprints her brain development genes and the father imprints his growth genes. B. The mother imprints her growth genes and the father imprints his brain development genes. C. Mothers and fathers both imprint brain development genes. D. Brain development genes are present in the mitochondria, while growth genes are present in the nucleus. E. Brain development genes are on the X chromosome and growth genes are on the Y chromosome.
Cells that are making large quantities of proteins will have numerous ____
a. centrioles b. chromosomes c. cilia d. plastids e. ribosomes
Which gametes can a RrYy plant produce?
A. RY or ry B. R or r C. RY, Ry, rY, or ry D. RrYy E. Rr or Yy
The minimum viable population is the
A) smallest number of males needed to maintain a population. B) number of organisms that can reproduce in a population. C) number of organisms that can be spread over a fragmented habitat. D) number of organisms produced by an inbred population. E) smallest number of organisms capable of maintaining a population.