Understanding Crossing Over in DNA: The Key to Genetic Diversity
Explore how crossing over in DNA enhances genetic diversity and its vital role in evolution during meiosis.
45 views
Crossing in DNA, often referred to as 'crossing over,' is a process during which homologous chromosomes exchange segments of genetic material during meiosis. This genetic recombination increases genetic diversity within the population, essential for evolution and adaptation. Precise alignment of chromosomes ensures that genes are exchanged accurately, contributing to genetic variation in offspring.
FAQs & Answers
- What is the function of crossing over in genetics? Crossing over facilitates the exchange of genetic material between homologous chromosomes, enhancing genetic diversity.
- How does crossing over affect offspring? It contributes to genetic variation in offspring, which is crucial for the adaptation and evolution of species.
- What is meiosis? Meiosis is a specialized form of cell division that reduces the chromosome number by half, creating gametes for sexual reproduction.