Biology - Reproduction

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  • Created by: Holly
  • Created on: 06-11-12 18:25
Sexual reproduction is where genetic information from two organisms (father+mother) is combined ....
to produce offspring which are genetically different to either parent.
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In sexual reproduction the mother and father produce ...
gametes (egg + sperm cells)
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How many chromosomes does each gamete contain?
23. A gamete has half the number of chromosomes as a normal cell.
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The egg cell (gamete) from the mother and the sperm cell (gamete) from the father then fuse together (fertilisation) to form a cell with...
the full number (46) of chromosomes. Half from each parent.
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Sexual reproduction involves the fusion of male and female gametes. Because there are two parents, the offspring contain...
a mixture of their parents genes.
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Why does the offspring contain features from both its parents?
because it has a mixture of chromosomes from its mother and father.
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This mixture of genetic material produces ..... in the offspring.
variation
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AN ordinary cell can make a new cell by simply...
dividing into two.
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The new cell has exactly the same ... as the parent cell, this is known as asexual reproduction.
genetic information.
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In asexual reproduction there is only 1 parent. There is no fusion of gametes, no mixing of chromosomes and no genetic variation between parent+offspring. The offspring are genetically identical...
to the parent, they are clones.
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Other cards in this set

Card 2

Front

In sexual reproduction the mother and father produce ...

Back

gametes (egg + sperm cells)

Card 3

Front

How many chromosomes does each gamete contain?

Back

Preview of the front of card 3

Card 4

Front

The egg cell (gamete) from the mother and the sperm cell (gamete) from the father then fuse together (fertilisation) to form a cell with...

Back

Preview of the front of card 4

Card 5

Front

Sexual reproduction involves the fusion of male and female gametes. Because there are two parents, the offspring contain...

Back

Preview of the front of card 5
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