GCSE Variation & Reprodution- theory

Various resources for studying the topic variation and reproduction at GCSE level Biology and Science
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X and Y chromosomes, coloured scanning electron micrograph (SEM). Humans have 46 chromosomes in total: 23 inherited from the mother and 23 from the father. These sex chromosomes determine the individual's gender. Males have an X sex chromosome (pink) and a Y sex chromosome (blue) and females have two X sex chromosomes.Uncompressed file size: 25.5MB Downloadable file size: 455.5KB

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Cauliflower cloning - tissue culture and micropropagation experiments from SAPs

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Evaluating cloning- should we clone? This is one opinion. Use the menu on the left to navigate to two other opinions.

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