LS 5-2 Test Review - Meiosis
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Created by:
harrisonk102 Plus on March 19, 2012
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31 terms
Terms | Definitions |
|---|---|
 XX | What are the female sex chromosomes? |
| XY | What are the male sex chromosomes? |
| to allow for growth or to replace damage or old cells | What is the function of mitosis? |
| to produce reproductive cells (gametes) for sexual reproduction | What is the function of meiosis? |
| zygote | Name the first cell formed as a result of fertilization; fertilized egg |
| genes | segments of DNA located in chromosomes that are passed from parents to offspring |
| Walter Sutton | Name the scientist who discovered genes are located on chromosomes. |
| gametes | reproductive cells; egg and sperm |
| ova | female gametes; eggs |
| somatic | body cells other than reproductive cells |
| 46 | How many chromosomes are located in ordinary, non-reproductive human body cells? |
| 23 | How many chromosomes are located in human reproductive cells called gametes? |
| 23 | How many matched pairs of chromosomes do female human cells contain? |
| 22 | How many matched pairs of chromosomes do male human cells contain? |
| X | All eggs carry an ________ (sex) chromosome. |
| X or Y | Sperm cells contain an _____ or a ____ (sex) chromosome. |
| Karyotype | a picture of all the chromosomes in a cell arranged in pairs |
| meiosis | type of cell division that produces sex cells called gametes |
| mitosis | type of cell division that produces "regular" (somatic) body cells; with this type of cell division, each new cell receives a copy of the original chromosome |
| larger | The X chromosome is ______________ than the Y chromosome. |
| sex chromosomes | chromosomes that carry genes to determine the sex or gender of offspring |
| homologous | ___________ chromosomes contain matching information. |
| sex cells | egg or sperm that carries 1/2 the number of chromosomes found in other body cells |
| once | The nucleus divides ______ in mitosis. |
| twice | The nucleus divides ________ in meiosis. |
| meiosis | Which type of cell division produces more genetic diversity - mitosis or meiosis? |
| asexual | type of reproduction usually utilized by unicellular organisms |
| sexual | type of reproduction utilized by complex, multicellular organisms |
| 8 | How many phases are involved in meiosis? |
| 4 | How many phases are involved in mitosis? |
| sperm | In humans, which reproductive cell determines the gender of the unborn baby - egg or sperm? |
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