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•    New nucleolus is formed. The astral rays and spindle fibres

disintegrate and disappear. The two daughter nuclei, each

containing haploid number of chromosomes are formed.

•    The end of telophase-I marks the end of karyokinesis-I also.

Karyokinesis - I may be followed by cytokinesis-I.

Daughter

cells

Fig.:Telophase-I

Aster disappear

Nuclear membrane

appearing

Nucleolus

(appearing)

Spindle

disappear

interkinesis

•    It is metabolic stage between telophase of meiosis I and

prophase of meiosis II.

•    Protein and RNA synthesis may occur.

•    Centrosomes or centriole pairs undergo replication in animal

cells. There is no DNA synthesis. It is short lived and

important to bring true haploidy in daughter cells.

meioSiS – ii

•    It is called homotypic or equational division, because it

maintains the number of chromosomes produced at the end

of reduction division.

•    It is similar to mitosis, despite it is not mitosis, due to the

following differences :

Meiosis II Mitosis

1. It always occurs in haploid cells
   and is shorter than mitosis.

It occurs in diploid

cells.

2. It is not preceded by DNA
   replication.

It is preceded by

DNA replication.

3. Due to crossing over, two
   chromatids of a chromosome are
   dissimilar.

Two chromatids of

a chromosome are

similar.

•    Meiosis II is divisible into prophase II, metaphase II,

anaphase II and telophase II.

Prophase - ii
• It is very short stage, occurs simultaneously in nuclei
formed from meiosis - I.
• In animal cells, the centriole pairs develop asters and move
to the regions of future spindle poles.
• The dyad chromosomes shorten a little and nucleolus and
nuclear envelope degenerate.

•    In case where telophase I is omitted, the prophase II is

completely absent.

metaphase-ii

•    The chromosomes arrange themselves at equatorial plate.

•    achromatic bipolar fibrous spindles is formed which is in the

areas of dividing nuclei.

•    Spindles are amphiastral in case of animal cells and

anastral in case of plant cells.

•    each chromosome gets connected with both the spindle

poles by means of chromosome fibres or tractile fibrils

that develop from both the surfaces of its centromere.

anaphase-ii

•    The two chromatids of a chromosome separate completely

and move towards the spindle poles along the path of their

fibres or tractile fibrils.

•    The centromere of each chromosome divides into two.

telophase-ii

•    at the end of anaphase II, four groups of chromosomes are

produced, each group having haploid number.

•    each of these haploid groups get enclosed by a nuclear

envelope. Nucleolus also reappears.

cytokinesis

•    Cytokinesis followed by meiosis II, resulting in the formation

of tetrad i.e., four haploid daughter cells. Cytokinesis can

be of two types, successive and simultaneous.