If the m checkpoint is not cleared, what stage of mitosis will be blocked?
prophase
prometaphase
metaphase
anaphase

Anaphase

Explanation:

The M check-point of the cell cycle regulates the cell cycle by checking if all the chromosomes are attached properly to the spindle fibers. This checkpoint also ensures that chromosomes are aligned properly at the cell's equator.

If these conditions are met, the M checkpoint allows the cells in the metaphase to progress towards the anaphase. However, any deviation from above-mentioned conditions prevents the cells in the metaphase to enter the anaphase.

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'