CHILD DEVELOPMENT PEDAGOGY

GROWTH DEVELOPMENT CHILD

GROWTH AND DEVELOPMENT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the first stage of Mitosis?
A
Anaphase
B
Metaphase
C
Prophase
D
Telophase
Explanation: 

Detailed explanation-1: -Prophase is the first phase of mitosis, the process that separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells. During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses.

Detailed explanation-2: -In the first stage of prophase I, leptotene (from the Greek for “delicate"), chromosomes begin to condense. Each chromosome is in a haploid state and consists of two sister chromatids; however, the chromatin of the sister chromatids is not yet condensed enough to be resolvable in microscopy.

Detailed explanation-3: -Prophase-the first stage of mitosis. Spindles attached to kinetochores begin to shorten. This exerts a force on the sister chromatids that pulls them apart. Spindle fibers continue to shorten, pulling chromatids to opposite poles.

Detailed explanation-4: -Prophase is the first stage in mitosis. During this stage the chromosomes condense. Also, during this stage the nuclear membrane and nucleolus start to disappear. Centrioles duplicate and move to the opposite poles of the cell.

Detailed explanation-5: -Prophase is characterized by condensation of sister chromatids-essentially packaging into a more compact chromatin structure. This process involves condensins I and II, which require phosphorylation by mitotic Cdks.

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