Template:BGDA Practical 3 - Gametogenesis Interactive: Difference between revisions

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- nondisjunction of the chromosomes could occur
- nondisjunction of the chromosomes could occur
- All of the above.
- All of the above.
|| Random recombination of DNA (hereditary material) occurs. {{meiosis}}
|| During {{Prophase I}} of {{meiosis}} random recombination of DNA (hereditary material) occurs. There is no reduction in chromosome number, separation of duplicated DNA and nondisjunction of the chromosomes is unlikely to occur during {{Prophase I}}.


{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?
 
{In meiosis, the composition of chromatid is changed during:
|type="()"}
|type="()"}
- follicular stimulating hormone (FSH)
- prophase I
- leutenising hormone (LH)
- metaphase I
+ cyclic AMP (cAMP) secreted by follicles
+ anaphase I
- androgens
- anaphase II
- Oestrogens
- prophase II
|| 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]
|| During {{Prophase I}} of {{meiosis}} random recombination of DNA occurs that leads to the change in composition of chromatid.


{Which of the following is the most correct sequence of ovarian follicle development classifications.
{Which of the following is the most correct sequence of ovarian follicle development classifications.

Revision as of 13:13, 6 May 2019

Interactive Component

Attempt the Quiz - Gametogenesis 
BGDsmall.jpg

Here are a few simple Quiz questions that relate to Gametogenesis from the lecture and practical.

  

1 During Prophase I of meiosis:

Reduction of the number of chromosomes occurs
random recombination of hereditary material (DNA) occurs
already duplicated DNA is separated
nondisjunction of the chromosomes could occur
All of the above.

2 In meiosis, the composition of chromatid is changed during:

prophase I
metaphase I
anaphase I
anaphase II
prophase II

3 Which of the following is the most correct sequence of ovarian follicle development classifications.

Preovulatory, Secondary, Primary, Primordial
Graafian, Primary, Small antral, large antral
Primordial, Primary, Secondary, Preovulatory
Primary, Secondary, Preovulatory
None of the above