Question

which type of rna functions to use coded instructions to assemble amino acids?
a mrna
b rrna
c trna
d ribosomes
question 2 (4 points)
(03.03 mc)
which of the following processes are involved in transcription?
i. rna polymerase binds to a dna molecule
ii. a strand of dna is used to assemble nucleotides into a complimentary strand
iii. dna polymerase binds to a rna molecule
a i only
b i and ii only
c ii only
d i, ii, and iii

Explanation:

For the first question, mRNA (messenger RNA) carries the genetic code from DNA to the ribosomes for amino - acid assembly. rRNA (ribosomal RNA) is part of the ribosome structure, tRNA (transfer RNA) brings amino acids to the ribosome, and ribosomes are the sites of protein synthesis but not an RNA type for carrying coded instructions. For the second question, in transcription, RNA polymerase binds to a DNA molecule (I) and a strand of DNA is used to assemble nucleotides into a complementary RNA strand (II). DNA polymerase is involved in DNA replication, not transcription.

Answer:

1. a. mRNA
2. b. I and II only