An Arabidopsis plant that contains a mutant mp gene would most likely:a
lack a primary root.
b. develop into callus.
c. produce buds but not leaves.
d. produce flowers but not fruits.
e. lack a stem.
a
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What cannot be determined from examining age pyramids of human populations?
A) the future population size B) the age structure of the population C) the success of future generations D) the fecundity of a future population
The statement that, in garden peas, yellow seed is dominant to green seed means that:
A. when a true-breeding yellow seed parent is crossed with a true-breeding green seed parent, all offspring will have green seeds. B. when a true-breeding yellow seed parent is crossed with a true-breeding green seed parent, all offspring will have yellow seeds. C. when a true-breeding yellow seed parent is crossed with a true-breeding green seed parent, ½ of the offspring will have yellow seeds and ½ will have green seeds. D. when a true-breeding yellow seed parent is crossed with a true-breeding green seed parent, ¼ of the offspring will have yellow seeds and ¼ will have green seeds. E. we can't predict seed color in the offspring of a true-breeding yellow seed parent and a true-breeding green seed parent.
Species richness and the relative abundance of
each species determine
a. the species composition of an ecosystem. b. the species diversity of a community. c. the species composition of a population. d. the species diversity of a biosphere. e. the species diversity in a niche
The “ruling reptiles”
a. dominated the land for 125 million years. b. coexisted with ichthyosaurs. c. coexisted with turtles and tuataras. d. lost many lineages in a mass extinction that ended the Jurassic. e. did all of these.