NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL CYCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The stage where DNA condenses into chromosomes and the chromosomes are visible.
A
Prophase
B
metaphase
C
anaphase
D
Telophase
Explanation: 

Detailed explanation-1: -During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses. The chromatin coils and becomes increasingly compact, resulting in the formation of visible chromosomes. Chromosomes are made of a single piece of DNA that is highly organized.

Detailed explanation-2: -Chromosomes become visible during prophase. Chromatin is in its least condensed stage during the interphase stage. It begins its condensation during the prophase stage and is visible until the end of cell division. Q.

Detailed explanation-3: -Meiotic prophase I is subdivided into five stages: leptotene, zygotene, pachytene, diplotene, and diakinesis.

Detailed explanation-4: -Prophase is the first phase of mitosis. During this phase, the chromosomes inside the cell’s nucleus condense and form tight structures.

Detailed explanation-5: -During prophase, the chromosomes condense and the nucleolus disappears. At the beginning of prophase, the chromosomes are condensing to become visible microscopically. Each chromosome consists of two parallelsister chromatids, joined together at one point along their length at thecentromere.

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