5 Questions
What are the factors that determine the amount of genetic variation in a population?
Mutation, recombination, independent segregation, and random fertilisation.
How does mutation contribute 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.
Explain the process of recombination and its role in genetic variation.
Recombination occurs during meiosis, where genes on homologous pairs are reshuffled, producing a new combination of genes and increasing genetic variation.
What happens during independent segregation and how does it contribute to genetic variation?
During independent segregation in meiosis, chromosomes in the homologous pair are randomly separated, leading to genetic variation.
Describe the role of random fertilisation in producing genetic variation.
Random fertilisation during sexual reproduction fuses gametes of two unrelated individuals to produce a diploid cell, contributing to genetic variation.
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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