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Ana-Gametogenesis
General Anatomy Wk 1
| Question | Answer |
|---|---|
| In Meiosis? | The daughter cells have half the number of chromosomes |
| In Mitosis, the gametes have... ? | Full number of chromosomes as parent cells. |
| Two general types of cells? | Somatic and sex cells. |
| What are the two sex cells? | Sperm cells and ovum |
| Sex cells undergo? | Both meiosis and mitosis |
| Somatic cells undergo? | Only mitosis. |
| What happens during prophase of mitosis? | There is a condensation and coiling of the chromosomes, becoming thicker, like a spring. |
| What happens during metaphase? | All 46 chromosomes are lining up along equatorial plane. The chromosomes are already double stranded with sister chromatids. |
| In meiosis 1, there is a --- pairing of the chromosomes, which is called ----? (during prophase, prior to metaphase) | homologous (23 pairs), synapses |
| At the end of meiosis 1, the cells become ___? | diploid |
| At the second meiotic division, the chromosome is ____? | split apart into single stranded (haploid) |
| In the spermatogonium, they undergo several ___ divisions. | Meiotic |
| The primary spermatocyte undergoes ____? | The first meiotic division. |
| All 46 chromosomes are ____ stranded at this point? | Double |
| It results in ___ double stranded chromosomes? | 23 |
| Then the ____ will have 23 double standed chromosomes? | The secondary spermatocyte |
| Then the secondary spermatocyte will result in __ __ __ chromosomes? | 23 single stranded |
| The resulting cells after secondaryu meiotic division, leads to production of the __? | spermatid |
| the transformation of the spermatid to a spermatoza is called ???? | Spermatogenesis |
| What is the primary egg cell called? | Ovum |
| What is the creation of the ovum called? | OOgenesis |
| The primary oocyte has __ xx in primary follicle? | 46 |
| What starts the production of the ovum? | FSH |
| There is an unequal distrubution of ___? | cytomplasm |
| This leads to only ONE of the daughter cells having ___? | nuclear material |
| This is called ___ ? | The first polar body. |
| The other cell has all of the __? | cytoplasm |
| Then, second meiotic division, becomes the __? | OOcyte |
| this produces ___? | another polar body |
| One primary sermatocyte yields __ spermatoza? | 4 |
| One oocyte produces __ ovum because of ___ | 1, unequal distribution of cytoplasm |
| The follicular cells produces primarily __ and some __ thru stimulation of __? | estrogen, progesterone, FSH |
| About 14th day of menstral cycle, sudden spike of __, triggering __ to get expelled from ovaries, called ---? | LH, follicle, ovulation |
| After 2ndary oocyte division, undergoes ---,---,---,? | prophase, metaphase, stops here. (unless fertilized by sperm cell) called diplotein stage; when oocyte dev is suspended at metaphase, proceding into anaphase and telephase after fertilization only |
| Which sex cell determines the sex? | The sperm cell |
| Before puberty, seminiferous tubules are still __? | solid |
| During puberty, it becomes __? | hollow |
| Prenatally, have about __, then at puberty ___, then less than __ get ovulated? | 700k-2mm, 400k, 500 |
Created by:
paradoxy
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