AP BIOLOGY

HEREDITY

MUTATIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Transcription and Translation are two important processes of protein synthesis. Read through the following descriptions. Which ones occur in Translation?
A
Uses DNA as a template to create mRNA
B
Assembles amino acids into proteins
C
Occurs in the nucleus
D
Occurs in the ribosome which is found in the cytoplasm
E
Occurs in the mitochrondria
Explanation: 

Detailed explanation-1: -Cell uses the genes to synthesize proteins. This is a two-step process. The first step is transcription in which the sequence of one gene is replicated in an RNA molecule. The second step is translation in which the RNA molecule serves as a code for the formation of an amino-acid chain (a polypeptide).

Detailed explanation-2: -The purpose of transcription is to make RNA copies of individual genes that the cell can use in the biochemistry. The purpose of translation is to synthesize proteins, which are used for millions of cellular functions. Translation is the synthesis of a protein from an mRNA template.

Detailed explanation-3: -Transcription occurs in the nucleus in eukaryotic organisms, while translation occurs in the cytoplasm and endoplasmic reticulum. Both processes occur in the cytoplasm in prokaryotes. The factor controlling these processes is RNA polymerase in transcription and ribosomes in translation.

Detailed explanation-4: -In eukaryotes, ribosomes can commonly be found in the cytosol of a cell, the endoplasmic reticulum or mRNA, as well as the matrix of the mitochondria. Proteins synthesized in each of these locations serve a different role in the cell.

There is 1 question to complete.