Template:BGDA Practical 3 - Oogenesis and Ovulation Interactive: Difference between revisions
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{Oocytes in follicles enter prophase 1 of meiosis and are arrested at the diplotene stage. Which of the following block the further stages of mitosis? | {Oocytes in follicles enter prophase 1 of meiosis and are arrested at the diplotene stage. Which of the following block the further stages of mitosis? | ||
|type="()"} | |type="()"} | ||
- follicular stimulating hormone (FSH) | |||
- leutenising hormone (LH) | - leutenising hormone (LH) | ||
+ cyclic AMP (cAMP) secreted by follicles | |||
- androgens | - androgens | ||
- Oestrogens | - Oestrogens | ||
|| In mammalian oocytes cyclic AMP (cAMP) secreted by follicles maintains meiotic arrest by inactivation of maturation promoting factor (MPF) and by stimulating cAMP-dependent protein kinase A (PKA). [https://www.ncbi.nlm.nih.gov/pubmed/26926596 PMID 26926596] | || In mammalian oocytes cyclic AMP (cAMP) secreted by follicles maintains meiotic arrest by inactivation of maturation promoting factor (MPF) and by stimulating cAMP-dependent protein kinase A (PKA). [https://www.ncbi.nlm.nih.gov/pubmed/26926596 PMID 26926596] | ||
{Which of the following is the most correct sequence of ovarian follicle development classifications. | |||
|type="()"} | |||
- Preovulatory, Secondary, Primary, Primordial | |||
- Graafian, Primary, Small antral, large antral | |||
+ Primordial, Primary, Secondary, Preovulatory | |||
- Primary, Secondary, Preovulatory | |||
- None of the above | |||
|| The follicle sequence (Primordial, Primary, Secondary, Preovulatory) is the most correct. Other sequences are either incorrectly sequenced or contain a mixture of different follicle definitions. [[BGDA_Practical_3_-_Oogenesis_and_Ovulation#Follicle_Classification_2|follicle development classifications]] | |||
</quiz> | </quiz> |