Reproduction

?
........means the production of the female gamete, or ovum.
Oogenesis
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..... describes a cell with 46 chromosomes; ..... describes a cell with 23 chromosomes.
Diploid; haploid
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Diploid oogonia cells can undergo ...... and become primary oocytes. However they pause in prophase I until menstruation; ....... resumes each month, culminating in two daughter cells with equally divided chromosomes (remember one gets lots of cytoplasm a
Meiosis I
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In oogenesis, a secondary oocyte would undergo .......
meiosis II
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In the testes, in the sperminiferous tubules, in spermatogonia, what happens?
Spermatogenesis
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In spermatogenesis, diploid spermatogonium divide into two diploid spermatocytes via ......; these undergo ..... to become two haploid secondary spermatocytes; these undergo ........ to become four haploid ..........
mitosis; meiosis I; meiosis II; spermatids.
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Something with an acrosome full of genetic material and a mid-section full of mitochondria is a what?
Spermatozoon
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Regarding cerebral events that affect spermatogenesis:

The......releases ......., releasing hormone GNRH, affecting anteriorpituitary gland which releases lutenising hormone and ollicle stimulating hormone, which interact with sexual organs.
hypothalamus;gonadotropin;
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Spermatozoon usually meets the ovum in the ‘ampulla’, or top bit. It has to burrow through the .........., and then the......... (a matrix of glycoproteins). Complimentary proteins in the ....... cause a release of enzymes, allowing the spermatozoon to pa
corona radiata; zona pellucida; acrosome.
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After the spermatozoon has passed through the corona radiata and zona pellucida, ............inside the secondary oocyte go through the layers (........ membrane, ........space) from the middle.
cortical granules; vitelline; perivitelline
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The arrival of cortical granules at the zona pellucida causes cross-linking between protein molecules; the ....... hardens and changes electrical charge .......
zona pellucida; so no more spermatozoa can get in.
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Fertilised egg is called a ......; first division, complete at about 30 hours, constitutes a couple of ..........; a solid mass of these after a few days is called a ........ (it’s usually got to the uterus by this point). Further divisions lead to format
zygote; blastomeres; morula; blastocyst; blastocoel; embryo; placenta.
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A note on homeobox gene sequences:
- .....base pairs long
- encodes a ......... protein comprised of about 60 amino acids.
- homeodomain proteins are transcription factors with sites that.....
- in amino acid sequence, a .... indicates a DNA bind.
- huma
~180; homeodomain; DNA can bind to; dash; ~235
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A note on hox genes:

All embryonic planning of body’s regions from head to toe, literally arranged accordingly. The ....... that form them are basically the same amongst all organisms
nucleotides
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A cell’s life is 5% ....... (cell division), 95% interphase. ..... means cell death.
mitosis; Apoptosis;
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‘.......’, or cell death, is highly regulated. Everything happens within the cell, otherwise the enzymes could escape and affect other cells. Once cell’s contents are broken down by...... (as coded by the cell itself), the cell gets phagocytosed by.....
Apoptosis; protease; macrophages
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With extrinsic apoptosis, the signal to release protease internally comes from .....; it is used in embryonic development because unnecessary, outdated, ‘.........’ stuff like organs develop and you need to sort these out.
other cells; transitory
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With intrinsic apoptosis, the signal to release protease internally come from ......
the cell itself
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Other cards in this set

Card 2

Front

..... describes a cell with 46 chromosomes; ..... describes a cell with 23 chromosomes.

Back

Diploid; haploid

Card 3

Front

Diploid oogonia cells can undergo ...... and become primary oocytes. However they pause in prophase I until menstruation; ....... resumes each month, culminating in two daughter cells with equally divided chromosomes (remember one gets lots of cytoplasm a

Back

Preview of the front of card 3

Card 4

Front

In oogenesis, a secondary oocyte would undergo .......

Back

Preview of the front of card 4

Card 5

Front

In the testes, in the sperminiferous tubules, in spermatogonia, what happens?

Back

Preview of the front of card 5
View more cards

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