Auxotroph:
A. An organism with a wild-type complement of genes enabling it to grow with a simple requirement for nutrients
B. A mutant unable to synthesize a required small molecule, and therefore must obtain it from the environment
C. Certain wild-type bacteria that have complicated growth requirements, and may be difficult to grow in culture
D. The early form of bacteria that gives some of its DNA to another cell
Ans: B. A mutant unable to synthesize a required small molecule, and therefore must obtain it from the environment
You might also like to view...
In general, birds increase the chance their young will survive by
a. providing parental care of the young. b. selecting nesting sites away from predators. c. being oviparous. d. both a and b e. both b and c.
All protists are _____.
A. eukaryotic B. symbionts C. mixotrophic D. unicellular E. monophyletic
What are the sizes of two subunits used to compose prokaryotic ribosomes?
a) 20S + 50S b) 30S + 40S c) 30S + 50S d) 40S + 60S
Preterm infants
Select one: a. have minimal nutritional problems. b. may have problems sucking and swallowing. c. will almost always die. d. are born with adequate mineral and fat stores.