5 Questions
What are the factors that determine the amount of genetic variation in a population?
Mutation, recombination, independent segregation, random fertilisation
How does recombination contribute to genetic variation?
Recombination during meiosis reshuffles the genes on homologous pairs, producing a new combination of genes and increasing genetic variation.
Explain how mutation can lead to genetic variation.
Mutation is a change in the DNA base sequence, which can cause changes in the structures of proteins encoded by DNA, leading to genetic variation.
What is independent segregation and how does it contribute to genetic variation?
Independent segregation in meiosis results in the random separation of chromosomes in homologous pairs, leading to genetic variation.
Describe the process of random fertilisation and its role in genetic variation.
During sexual reproduction, the gametes of two unrelated individuals are fused to produce a diploid cell, contributing to genetic variation through random fertilisation.
Test your knowledge on genetic and phenotypic variation with this quiz. Explore the factors contributing to genetic variation in populations, including mutation and environmental influences.
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