Choose the true statements about the roles of AP3 and PI in petal development in the eudicots.
_____ The C terminus sequence of the AP3 protein specifies petal development.
_____ The C terminus sequence of the AP3 protein is conserved among all flowering plants.
_____ AP3 has an essential role in petal development encoded at its 5' end.
_____ The PI gene in eudicots retains an involvement in stamen development.
__X__ The C terminus sequence of the AP3 protein specifies petal development.
_____ The C terminus sequence of the AP3 protein is conserved among all flowering plants.
_____ AP3 has an essential role in petal development encoded at its 5' end.
__X__ The PI gene in eudicots retains an involvement in stamen development.
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A toxic organic compound is:
a. chromium. b. polychlorinated biphenyls. c. trash. d. oil. e. zinc.
Bacteroids are
a. specialized nitrifying bacteria. b. small buds from ammonifying bacteria. c. specialized bacteria that help some plant roots absorb phosphorus. d. enlarged and immobilized nitrogen-fixing bacteria. e. interactions between plant root hairs and bacteria.
In meiosis of oogenesis, how many mature eggs result?
a. one b. two c. three d. four e. five
Campylobacter is a mesophilic bacteria able to grow at 4 ° C. It is referred to as a _______.
A) mesophile B) psychrotroph C) psychrophile D) thermophile