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Reproduction

type of cell ...

Question

________ type of cell division reduces chromosome number to half in sex cells.

A

DNA duplication and meiotic

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B

DNA amplification and mitotic

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C

DNA multiplication and cytokinesis

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D

DNA replication and meiotic

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Solution

The correct option is D
DNA replication and meiotic

Meiosis - I of meiotic cell division reduces chromosome number to half in sex cells and so is called reductional division.

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Similar questions

Q. Which of the following statements is true?
(i) Mitosis is preceded by one cycle of DNA replication and meiosis is preceded by two cycles of DNA replication.
(ii) In sexually reproducing organisms, meiosis is the only type of cell division observed.
(iii) Meiotic cell division is essential for the production of haploid gametes.

Q. Which of the following statements are incorrect about meiosis ?
(a) It yields four genetically identical cells
(b) It involves two successive divisions without any DNA replication occurring between them.
(c) Intrameiotic interphase involves replication of DNA and centrioles.
(d) Meiosis -I results in the formation of two daughter cells each with haploids number of chromosomes and

1 C

Q. The cell is in ______ after DNA replication and before cell division.

Q. What will be the content of DNA in a somatic cell at G

_{2}

if its meiotic products have 20 picogram of DNA?

Q. Fill in the blanks with appropriate words.
In .......... every DNA replication of chromosome duplication is followed by two nuclear divisions.

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