The nucleolus plays a major role in synthesis of
A. tRNA.
B. transcription activation proteins.
C. rRNA.
D. mRNA.
Answer: C
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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.
Which molecule catalyzes covalent bond formation between fragments of DNA.
A. helicase. B. ligase. C. polymerase. D. primase. E. nuclease.
What hormone is most involved in labor?
a. estrogen b. prolactin c. oxytocin d. prostaglandin e. progesterone
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.