Question

What are the four types of RNA and how do they function?

a) mRNA, tRNA, rRNA, sRNA; involved in protein synthesis
b) mRNA, miRNA, piRNA, siRNA; involved in gene regulation
c) tRNA, rRNA, mRNA, snoRNA; involved in transcription
d) mRNA, tRNA, rRNA, snRNA; involved in cellular respiration

Answer 1

The four types of RNA involved in protein synthesis are mRNA, rRNA, tRNA, and miRNA. mRNA carries genetic instructions from DNA to the cytoplasm for protein synthesis. rRNA helps form ribosomes, tRNA brings amino acids to ribosomes, and miRNA is involved in gene regulation.

Step-by-step explanation:

The four types of RNA involved in protein synthesis are messenger RNA (mRNA), ribosomal RNA (rRNA), transfer RNA (tRNA), and microRNA (miRNA). mRNA carries the genetic instructions from DNA to the cytoplasm, where it is used as a template to synthesize proteins. rRNA helps to form ribosomes, the organelles responsible for protein assembly.

tRNA brings amino acids to the ribosomes, where they are joined together to form proteins. miRNA, on the other hand, is involved in gene regulation, controlling the expression of mRNA.