RNA polymerase II of eukaryotes is responsible for transcribing ________.
A. mRNA
B. rRNA
C. tRNA
D. All of the choices are correct.
Answer: A
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Amoebic dysentery is caused by
(a) Ulva. (b) Volvox. (c) a desmid. (d) Entamoeba.
If the DNA from a crime scene matches a suspect’s DNA at four different loci, what should be
concluded if the DNA does not match the suspect’s DNA at a fifth locus?
What will be an ideal response?Angiosperms have two types of xylem tubes, each composed of one cell type, either ____ or ____.
A. vessel elements; companion cells B. sieve elements; companion cells C. sieve elements; tracheids D. vessel elements; sieve elements E. vessel elements; tracheids
The methylene blue reductase test is based on the assumption that milk with a high bacterial load will have an excess of free oxygen available due to its metabolism by the bacteria.
A) True B) False