NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL CYCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
During the gap 1 stage of the cell cycle, a cell
A
splits into two new cells.
B
carries out its normal functions.
C
duplicates its DNA.
D
divides its cytoplasm
Explanation: 

Detailed explanation-1: -Growth Phase 1 (G1): The cell spends most of its life in the first gap (sometimes referred to as growth) phase, G1. During this phase, a cell undergoes rapid growth and performs its routine functions. During this phase, the biosynthetic and metabolic activities of the cell occur at a high rate.

Detailed explanation-2: -This phase is followed by the G1 phase (gap 1), which corresponds to the interval (gap) between mitosis and initiation of DNA replication. During G1, the cell is metabolically active and continuously grows but does not replicate its DNA. G1 is followed by S phase (synthesis), during which DNA replication takes place.

Detailed explanation-3: -Gap1 functions as a molecular chaperone to stabilize its interaction partner Gap3 during biogenesis of serine-rich repeat bacterial adhesin-PMC. The .

Detailed explanation-4: -Interphase is the phase of the cell cycle in which a typical cell spends most of its life. Interphase is the ‘daily living’ or metabolic phase of the cell, in which the cell obtains nutrients and metabolizes them, grows, replicates its DNA in preparation for mitosis, and conducts other “normal” cell functions.

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