B1- Genes & Variation

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  • Created by: Megan16B
  • Created on: 23-12-15 10:50
(1) What are the sex cells?
Sperm & egg cell
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(2) What happens when the sperm fertilises the egg?
The 23 chromosomes in the sperm combine with the 23 chromosomes in the egg
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(3) The two chromosomes in a pair always carry...
the same genes
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(4) And each gene is...
Found in the same place on the two chromosomes
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(5) What are alleles?
Different versions of the same gene
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(6) Do children get some of their alleles from each of their parents?
Yes
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(7) What does this result in?
Children looking a bit like both of their parents
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(8) Are the two chromosomes in a pair identical?
No they are never identical because they have different alleles
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Other cards in this set

Card 2

Front

(2) What happens when the sperm fertilises the egg?

Back

The 23 chromosomes in the sperm combine with the 23 chromosomes in the egg

Card 3

Front

(3) The two chromosomes in a pair always carry...

Back

Preview of the front of card 3

Card 4

Front

(4) And each gene is...

Back

Preview of the front of card 4

Card 5

Front

(5) What are alleles?

Back

Preview of the front of card 5
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