Whereas number of chromosomes is reduced to half in first reduction division of meiosis, then need f

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5.Molecular Basis of Inheritance

normal

Whereas the number of chromosomes is reduced to half in first reduction division of meiosis, then what is the need for second mitotic division

For the segregation of replicated chromosomes

For equal distribution of haploid chromosomes

For the formation of four gametes

For equal distribution of genes on chromosomes

Solution

(a) The reduction of $DNA$ content does not occur in meiosis-$I$. Truely haploid nuclei in terms of $DNA$ contents as well as chromosomes number are formed in meiosis-$II$.

When the chromatids of each chromosome are separated in to different nuclei. Thus meiosis-$II$ is necessary.

Standard 12

Biology

For every single amino acid incorporated in peptide chain$. . . . $ $ATP$ and $. . . . $ $GTP$ molecules are used.

normal

Match the following:

Column $- I$ Column $- II$

$(1)$ Ligase $(p)$ Segment of $DNA$

$(2)$ $RNA$ polymerase + Rho factor $(q)$ Replication

$(3)$ $RNA$ polymerase $(r)$ Termination

$(4)$ Cistron $(s)$ Elongation

normal

Each chromosome at the anaphase stage of a bone marrow cell in our body has

normal

(AIPMT-1995)

$A$: Kornberg enzyme is associated with the removal of primers and thyminedimer.

$R$: $DNA$ polymersase I does exonuclease activity in $5^{\prime} \rightarrow 3^{\prime}$ and $3^{\prime} \rightarrow 5^{\prime}$ directions.

normal

The condensation of the chromosomes are maximal with visible centromeres at which phase of cell cycle

normal

Column $- I$	Column $- II$
$(1)$ Ligase	$(p)$ Segment of $DNA$
$(2)$ $RNA$ polymerase + Rho factor	$(q)$ Replication
$(3)$ $RNA$ polymerase	$(r)$ Termination
$(4)$ Cistron	$(s)$ Elongation

Whereas the number of chromosomes is reduced to half in first reduction division of meiosis, then what is the need for second mitotic division

Solution

Similar Questions

For every single amino acid incorporated in peptide chain$. . . . $ $ATP$ and $. . . . $ $GTP$ molecules are used.

Match the following: Column $- I$ Column $- II$ $(1)$ Ligase $(p)$ Segment of $DNA$ $(2)$ $RNA$ polymerase + Rho factor $(q)$ Replication $(3)$ $RNA$ polymerase $(r)$ Termination $(4)$ Cistron $(s)$ Elongation

Each chromosome at the anaphase stage of a bone marrow cell in our body has

$A$: Kornberg enzyme is associated with the removal of primers and thyminedimer. $R$: $DNA$ polymersase I does exonuclease activity in $5^{\prime} \rightarrow 3^{\prime}$ and $3^{\prime} \rightarrow 5^{\prime}$ directions.

The condensation of the chromosomes are maximal with visible centromeres at which phase of cell cycle

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Match the following:

Column $- I$ Column $- II$

$(1)$ Ligase $(p)$ Segment of $DNA$

$(2)$ $RNA$ polymerase + Rho factor $(q)$ Replication

$(3)$ $RNA$ polymerase $(r)$ Termination

$(4)$ Cistron $(s)$ Elongation

$A$: Kornberg enzyme is associated with the removal of primers and thyminedimer.

$R$: $DNA$ polymersase I does exonuclease activity in $5^{\prime} \rightarrow 3^{\prime}$ and $3^{\prime} \rightarrow 5^{\prime}$ directions.