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When does the secondary oocyte complete its second meiotic division to become a mature ovum?
The secondary oocyte completes its second meiotic division upon fertilization by a sperm cell. This leads to the formation of a mature ovum and a polar body.
In what phase are oocytes arrested during their development?
Oocytes are arrested in the prophase stage of meiosis I during their development.
Is there an S phase after meiosis 1?
No, there is no S phase after meiosis 1.
Is metaphase a phase in mitosis or meiosis?
Metaphase is a phase in both mitosis and meiosis.
Interphase is the first phase of meiosis.?
false
Difference between primary and secondary oocyte?
Any oogonia that has arrested itself in meiosis I prophase-dipotene on the onset of OMI (oocye maturation inhibition) hormone in the 3rd month of pregnancy and there after is a primary oocyte. On the urge of Leutinizing hormone which induces the pre-ovulatory phase, the primary oocyte completes meiosis I and arrests itself in meiosis II metaphase, which would only be completed if fertilization occurs, otherwise it will degenrate in 24 hours. On the completion of meiosis I, a SECONDARY oocyte and forst polar body is going to be formed.
When does the secondary oocyte complete its second meiotic division to become a mature ovum?
The secondary oocyte completes its second meiotic division upon fertilization by a sperm cell. This leads to the formation of a mature ovum and a polar body.
In what phase are oocytes arrested during their development?
Oocytes are arrested in the prophase stage of meiosis I during their development.
What phase happens in meiosis?
prophase1The first phase of meiosis is Prophase I
Is there an S phase after meiosis 1?
No, there is no S phase after meiosis 1.
What phase happens first meiosis?
prophase1The first phase of meiosis is Prophase I
Is metaphase a phase in mitosis or meiosis?
Metaphase is a phase in both mitosis and meiosis.
Interphase is the first phase of meiosis.?
false
What is the longest phase of meiosis?
The longest phase of meiosis is prophase I, which involves chromosome condensation, crossing over, and nuclear envelope breakdown. This phase can be subdivided into early, mid, and late stages, making it the most time-consuming phase in the process of meiosis.
What phase in meiosis 1 copies genetic DNA?
During meiosis I, the phase where genetic DNA is copied is called the S phase (synthesis phase) of interphase, which occurs prior to meiosis. During this phase, the chromosomes replicate, resulting in two sister chromatids for each chromosome. Meiosis I then proceeds with the separation of homologous chromosomes, but it does not involve further DNA replication.
Does meiosis occur in the s phase?
no
What is metaphase in meiosis?
it is the 2nd phase
