List the major differences between meiosis and mitosis.

Asked by Abhisek | 11 months ago |  120

1 Answer

Solution :-

Mitosis Meiosis
It occurs in all somatic cells and may
persist all over life
It occurs in reproductive cells at
specific times.
It involves a single division, which
leads to two daughter cells only.
It involves two successive divisions,
which leads to four daughter cells.
Consequent mitotic divisions are
similar to the previous ones.
Two meiotic divisions are dissimilar,
the first is reductional while
the second is equational.
Prophase is relatively short and simple. Prophase I is very long and elaborate, which comprises
five subphases like leptotene, pachytene,
zygotene, diplotene, and diakinesis.
There is no pairing of homologous chromosomes. Homologous chromosomes pair and often
undergo crossing over in prophase I.
Chromatids are genetically similar to
the chromosomes they arise from
Chromatids may vary genetically from the chromosomes
they emerge from because of crossing over.
No synaptonemal complex formed. Synaptonemal complex forms among
synapsed homologous chromosomes.
Chromosomes do not unfold, and no protein
synthesis and transcription take place in prophase.
Chromosomes unfold, n and protein synthesis
and transcription may take place in diplotene
of prophase I (oocytes of specific animals).
Daughter cells have a diploid number (2N)
of chromosomes like the parent cell.
Daughter cells have a haploid number
(N) of chromosomes, unlike the parent cell.

Answered by Pragya Singh | 11 months ago

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