NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL CYCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which one is in the correct order?
A
1st step-Attach to cell2nd step-Inject genetic material3rd step-Copy genetic material, make proteins 4th step-Assemble new viruses in the cell5th step-Release from the cell and goes to infect other cells
B
1st step-Attach to cell2nd step-Assemble new viruses in the cell3rd step-Inject genetic material4th step-Copy genetic material, make proteins 5th step-Release from the cell and goes to infect other cells
C
1st step-Inject genetic material2nd step-Copy genetic material, make proteins 3rd step-Assemble new viruses in the cell4th step-Attach to cell5th step-Release from the cell and goes to infect other cells
D
None of the above
Explanation: 

Detailed explanation-1: -The central dogma of molecular biology: DNA → RNA → protein.

Detailed explanation-2: -The first stage is entry. Entry involves attachment, in which a virus particle encounters the host cell and attaches to the cell surface, penetration, in which a virus particle reaches the cytoplasm, and uncoating, in which the virus sheds its capsid.

Detailed explanation-3: -Transcription is the first step of gene expression. During this process, the DNA sequence of a gene is copied into RNA. Before transcription can take place, the DNA double helix must unwind near the gene that is getting transcribed. The region of opened-up DNA is called a transcription bubble.

Detailed explanation-4: -Main steps of viral replication These include attachment, penetration, uncoating, replication, assembly, and virion release.

There is 1 question to complete.