CHILD DEVELOPMENT PEDAGOGY

GROWTH DEVELOPMENT CHILD

GROWTH AND DEVELOPMENT

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A group of biologists are setting up an experiment to study the length of the cell cycle, which of the following cells would not be a good cell to use?

A	liver cell
B	brain cell
C	blood cell
D	skin cell

Explanation:

Detailed explanation-1: -Flow cytometry is used as an analytical and diagnostic tool to measure DNA ploidy as well as to measure alterations in cell cycle profiles characteristic of random DNA fragmentation (necrosis) compared to patterned DNA cleavage (apoptosis).

Detailed explanation-2: -The best cell division stage to observe the shape, size and number of chromosomes is the metaphase. The chromosomes appear shortest and thickest during this phase and are arranged at the equator and form an apparent plate called as equatorial or metaphase plate thus readily visible.

Detailed explanation-3: -The cell cycle is a four-stage process in which the cell increases in size (gap 1, or G1, stage), copies its DNA (synthesis, or S, stage), prepares to divide (gap 2, or G2, stage), and divides (mitosis, or M, stage).

There is 1 question to complete.