To ensure growth of a newly discovered bacterium with unknown nutritional requirements, it would be best to begin with a ________ medium rather than a ________ medium
A) complex / minimal
B) minimal / complex
C) selective / complex
D) selective / differential
Answer: A
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During meiosis II in sperm development
A) primary spermatocytes divide meiotically to form diploid secondary spermatocytes. B) secondary spermatocytes divide meiotically to form haploid spermatids. C) spermatids divide meiotically to form haploid spermatozoa. D) sperm and oocyte meet and merge.
If a gene has multiple alleles, ____
a. only two alleles of the gene exist in the population b. more than two alleles of the gene are present in any given individual c. more than two alleles of the gene are present in the population d. one or more of the alleles is epistatic to the other(s) e. the alleles must be incompletely dominant
Transcription
a. occurs on the surface of the ribosome. b. is the final process in the assembly of a protein. c. occurs during the synthesis of any type of RNA from a DNA template. d. is catalyzed by DNA polymerase. e. fits all of these descriptions.
The letter “B” from the above figure represents
a. complement. b. MHC markers with antigen expressed to the surface of a cell. c. lysosome fusing with a phagosome. d. plasma membranes fusing. e. MHC recycling.