Methylotrophic bacteria ________.
A. are strict anaerobes
B. produce methane as a by-product of their metabolism
C. are members of the Archaea based on 16S rRNA sequencing
D. use reduced one-carbon compounds as their main source of carbon
Answer: D
You might also like to view...
Except for the regions at its tips where it is homologous to the X chromosome, genes on the Y chromosome:
A. are completely linked. B. are mostly completely linked, but a few exhibit independent assortment. C. are mostly completely linked, but a few exhibit random segregation. D. may or may not be linked; it just depends on how far apart they are from one another. E. may or may not be linked; it just depends on the individual alleles of the gene.
How many distinct aminoacyl-tRNA synthetases does each cell make?
A. ~1 B. ~20 C. ~60 D. ~120 E. ~180
In the fetus and during early puberty, in addition to corticosteroids, the adrenal cortex produces
a. insulin. b. androgens. c. ACTH d. epinephrine. e. norepinephrine.
The molecular fragment on an antigen molecule that a lymphocyte recognizes and responds to is called a/an
A. variable region. B. antigen binding site. C. epitope. D. hapten.