AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many steps are there in protein synthesis
A
1
B
2
C
3
D
4
Explanation: 

Detailed explanation-1: -Protein synthesis is the process in which cells make proteins. It occurs in two stages: transcription and translation.

Detailed explanation-2: -tRNA has anti-codons for the codons present on the mRNA molecule which helps to recognize the place of single amino acid. There are a total of 20 major common amino acids used in protein synthesis. There are five major steps of protein synthesis.

Detailed explanation-3: -The two major steps of protein synthesis are transcription and translation. During transcription, DNA in the nucleus is copied to mRNA using RNA polymerase. The mRNA is edited and exported to the cytoplasm where translation occurs. Translation happens when ribosomes bind to the mRNA and read the genetic code.

Detailed explanation-4: -Protein synthesis is a two-part process because it allows for more precise control. Protein synthesis starts with transcription in the nucleus, where DNA is copied to mRNA. Then, the mRNA is processed and exported to the cytoplasm, where ribosomes and proteins can read and assemble them.

Detailed explanation-5: -Translation is the second step of protein synthesis. Once transcription and the following processing are complete, translation is initiated. This is where the newly created mRNA’s genetic code is read and used to produce protein molecules. Once mRNA leaves the nucleus it travels to a ribosome.

There is 1 question to complete.