The function of trna is to
a. transfer amino acids to ribosomes.
b. make mrna.
c. make dna.
d. form ribosomes.

The correct answer is a - transfer amino acids to the ribosomes.

In the nucleus, information to synthesize a particular protein is transcribed from DNA and onto messenger RNA (mRNA).

mRNA leaves the nucleus and enters the cytoplasm of the cell where it attaches to a ribosome.  tRNA then begins to read(translate) the information on the attached mRNA, and corresponding to this information, fetches amino acids from the pool of free amino acids in the cytoplasm and brings them to the ribosome where they get  linked together into a long chain or polymer, forming the primary structure of the protein.

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explanation:

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

i hope this : )