Mitosis

During which phase of mitosis, the mitotic spindle shortens ,

• prophase

• anaphase

• metaphase

• telophase

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NGSS.HS-LS1-4

Mitosis can be observed in _____

• Polyploid individual

• Diploid individual

• Haploid individual

• All of the above

Tags

NGSS.HS-LS1-4

Mitosis results in

• Reduction in chromosome number

• Doubling of chromosome number

• Constant chromosome number

• Increase in cell volume

Tags

NGSS.HS-LS1-4

Mitotic anaphase and metaphase have

• chromosomes are halved at anaphase

• chromatids are halved at anaphase

• the same number of chromosomes and chromatids

• both chromosomes and chromatids are halved at anaphase

  Answer: (a)

Tags

NGSS.HS-LS1-4

The spindle apparatus is formed during the ________ phase of mitosis.

• metaphase

• Telophase

• anaphase

• prophase

Tags

NGSS.HS-LS1-4

If initial amount of DNA is 8C , then after M phase the amount of DNA will be

• 16C

• 64C

• 8C

• 4C

Tags

NGSS.HS-LS1-4

If you want to count the number of chromosomes, which is the best stage to do so?

• prophase

• metaphase

• anaphase

• telophase

Tags

NGSS.HS-LS1-4

Assertion: G1 phase is the interval between mitosis and initiation of DNA replication.

Reason: The cell is metabolically inactive during G1 phase.

• If both Assertion and Reason are true and Reason is the correct explanation of Assertion.

• If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

• If Assertion is true but Reason is false.

• If both Assertion and Reason are false.

How many mitotic divisions are required for a single cell to make 128cells ?

• 28

• 32

• 14

• 7

Tags

NGSS.HS-LS1-4

Colchicine arrests cell division at

• interphase

• prophase

• metaphase

• anaphase

Tags

NGSS.HS-LS1-4