AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
An enzyme that regulates RNA synthesis
A
RNA
B
Semiconservative replication
C
RNA polymerase
D
Ribosomal RNA
Explanation: 

Detailed explanation-1: -RNA Synthesis and Processing. The process of synthesizing RNA from the genetic information encoded by DNA is called transcription. The enzymes involved in transcription are called RNA polymerases.

Detailed explanation-2: -RNA polymerase (green) synthesizes RNA by following a strand of DNA. RNA polymerase is an enzyme that is responsible for copying a DNA sequence into an RNA sequence, duyring the process of transcription.

Detailed explanation-3: -RNA polymerase (RNAP) is the essential enzyme responsible for transcribing the genetic information stored in DNA to RNA.

Detailed explanation-4: -RNA polymerase I synthesizes a pre-rRNA 45S (35S in yeast), which matures and will form the major RNA sections of the ribosome. RNA polymerase II synthesizes precursors of mRNAs and most sRNA and microRNAs. RNA polymerase III synthesizes tRNAs, rRNA 5S and other small RNAs found in the nucleus and cytosol.

Detailed explanation-5: -The task of transcribing nuclear genes is shared between three RNA polymerases in eukaryotes: RNA polymerase (pol) I synthesises the large rRNA, pol II synthesises mRNA and pol III synthesises tRNA and 5S rRNA.

There is 1 question to complete.