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What are two main causes of recombination? Errors in DNA replication and damage

ID: 318593 • Letter: W

Question

What are two main causes of recombination? Errors in DNA replication and damage to DNA induced by chemicals or radiation Independent assortment of chromosomes and crossing over between nonhomologous chromosomes during meiosis Independent assortment of chromosomes and crossing over between homologous chromosomes during meiosis Fusion of male and female gametes bearing different alleles and crossing over between homologous chromosomes during mitosis Crossing over between sister chromatids during mitosis and crossing over between homologous chromosomes during meiosis

Explanation / Answer

The two main causes of recombination are:

3. Independent assortment of chromosomes and crossing over between homologous chromosomes during meiosis

5. Crossing over between sister chromatids during mitosis and crossing over between homologous chromosomes during meiosis.

Note: Mitotic recombination is primarily a result of DNA repair processes responding to spontaneous or induced damages.

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