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In which stage is a primary oocyte arrested?
A primary oocyte is arrested in the prophase stage of meiosis I.
When a primary oocyte divides a secondary oocyte and what are produced?
A primary oocyte divides into a secondary oocyte and a polar body during meiosis I. The secondary oocyte undergoes meiosis II to produce a mature ovum (egg) and another polar body.
When the primary oocyte divides a secondary oocyte and what else is produced?
The primary oocyte divides into a secondary oocyte and a polar body during meiosis I. The secondary oocyte then goes through meiosis II to produce a mature ovum (egg) and another polar body.
A primary oocyte is closely surrounded by flattened epithelial cells called?
Primary oocyte is surrounded by flattened epithelial cells called follicular cells.
What forms part of the primary follicle in the ovary?
A primary follicle consists of a primary oocyte surrounded by a single layer of enlarged cuboidal epithelium. Recall that previously, there was a primary oocyte in a primordial follicle surrounded by a thinner single layer of squamous follicular cells.
What is oolemma?
Oolemma is the cell membrane that surrounds the oocyte, or egg cell. It plays a critical role in regulating the movement of substances in and out of the egg cell during fertilization and early development.
Compare and contrast Primary oocyte and secondary oocyte?
Primary oocytes are diploid cells that have undergone DNA replication but are arrested in prophase I of meiosis, whereas secondary oocytes are haploid cells resulting from the division of primary oocyte after completing meiosis I. Secondary oocytes are arrested in metaphase II and are released during ovulation, while primary oocytes are present in the ovaries prior to puberty.
During oogenesis an oogonium directly gives rise to what?
A primary oocyte
What does follicle stimulating hormone promote the development of?
primary follicle/oocyte
Prenatal maturation of oocyte?
Primordial, secondary, tertiary, and antral are the basic steps in a developing oocyte
How many eggs are produced from one oocyte?
one cell is produced from one primary oocyte.
What is the function of the secondary oocyte?
The secondary oocyte is a key stage in the female reproductive process, specifically in oogenesis. It is formed after the primary oocyte undergoes meiosis I, and it contains the majority of the cytoplasm. The secondary oocyte is released during ovulation and, if fertilized by a sperm cell, it will complete meiosis II to become a mature ovum. Its primary function is to provide the necessary genetic material and cellular resources for successful fertilization and early embryonic development.
