The nucleolus plays a major role in synthesis of

A. tRNA.
B. transcription activation proteins.
C. rRNA.
D. mRNA.


Answer: C

Biology & Microbiology

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A histone code is:

A. the nucleotide sequence of an individual histone protein's gene. B. the pattern of chemical modification of the DNA wrapped around an individual histone. C. the pattern of chemical modification of an individual histone's tail. D. the number of lysines in an individual histone that are methylated. E. None of the answer choices are correct.

Biology & Microbiology

Which molecule catalyzes covalent bond formation between fragments of DNA.

A. helicase. B. ligase. C. polymerase. D. primase. E. nuclease.

Biology & Microbiology

What hormone is most involved in labor?

a. estrogen b. prolactin c. oxytocin d. prostaglandin e. progesterone

Biology & Microbiology

Independent assortment occurs between two pairs of homologous chromosomes that can be arranged

in four different ways at metaphase of meiosis. __________________ Indicate whether the statement is true or false.

Biology & Microbiology