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Genetics exam revise

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Discuss how meiosis produces variation, and why this is important. During meiosis, the homologous chromosomes are segregated. This mixes up the DNA, leading to variation. the offspring will be different from its parents,. This means that if the environment changes, successive generations have greater chance of survi
Describes aspects of meiosis Meiosis is a process in sexual reproduction, produces cells with half the chromosome number, the cell divides twice,Variation is needed to produce offspring with a greater chance of survival. Meiosis produces unique cells.
Explains how aspects of meiosis lead to variation. During meiosis the cell divides twice, producing daughter cells / gametes with half the number of chromosomes of the parent cell. It is random which daughter cell each homologue ends up in. This mixes up the DNA, leading to variation.
Discuss the reasons why an animal produced by cloning looks the same as its biological parent The cloned offspring is genetically identical to the biological parent because it does not involve meiosis/only involves mitosis.
Explanation of how the processes provide or restrict genetic variation. Cloned offspring is identical to biological parent because it gets all of its DNA from it. Cloned offspring gets all DNA from only one parent. Where as sexually reproduced offspring are different from the parents because they get DNA;genes from two di
Created by: YumnaHaskins
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