Term
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Definition
| A somatic cell is any cell in the body other than cells involved in reproduction. |
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Term
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Definition
| Germline cells are gametes (sperm and ova) and the stem cells that divide to form gametes |
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Term
| How do germline stem cells divide? |
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Definition
| By mitosis (to make more diploid cells) and meiosis (to make haploid gametes) |
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Term
| How do stomatic stem cells divide? |
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Definition
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Term
| If germline stem cells divide by mitosis, what is produced? |
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Definition
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Term
| If germline stem cells divide by meiosis, what is produced? |
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Definition
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Term
| What happens in the first division of meiosis? |
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Definition
| Separation of homologous chromosomes |
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Term
| What happens in the second division of meiosis? |
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Definition
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Term
| What is cellular differentiation? |
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Definition
| The process by which a cell expresses certain genes to produce proteins characteristic for that type of cell |
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Term
| What term refers to a cell that can differentiate into any kind of cell? |
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Definition
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Term
| State what is meant by the term multipotent. |
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Definition
| Can differentiate into all of the types of cell found in a particular tissue type |
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Term
| State an example of a therapeutic use of stem cells. |
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Definition
| Corneal repair/ Regeneration of damaged skin |
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Term
| State an example of a research use of stem cells. |
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Definition
| Model cells to study how diseases develop or being used for drug testing. |
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Term
| Describe an ethical concern over the use of embryonic stem cells |
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Definition
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Term
| Why do cancer cells divide excessively? |
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Definition
| They fail to respond to regulatory signals |
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Term
| Describe the process by which secondary tumours are formed. |
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Definition
| Cells within the tumour may fail to attach to each other, spreading through_x000D_ the body. |
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