Erstellt von francesca graham
vor mehr als 8 Jahre
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Frage | Antworten |
What are the two cells used in sexual reproduction called? | Gametes |
How many chromosomes does a gamete have and why? | A Gamete has 23 chromosomes so that it can join with the other parent cell to have the right number of chromosomes for a normal body cell. |
How does sexual reproduction produce vatiation? | By combining chromosomes from both parent cells so that the new cell has a mixture of features from both parents. |
How many divisions does meiosis involve? | Two |
Where does meiosis happen? | In the reproductive organs |
Describe the first division in meiosis | 1) The DNA duplicates itself 2) The chromosomes line up in the center of the cell in pairs 3) The pairs get pulled to opposite sides of the cell |
What is the difference between the first and second divisions in meiosis? | In the second division, the DNA doesn't duplicate itself |
How many gametes do you get as a result of meiosis? | Four |
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