Segregation means?

Segregation means?

• A. Segregation is the mixing of traits in offspring
• B. The separation of alleles during gamete formation
• C. Alleles pair up during fertilization
• D. Chromosomes assort themselves during meiosis

Answer: (B)

Segregation is about how a gene’s two allele copies are separated when reproductive cells form. In most organisms, genes have two alleles, one on each chromosome of a homologous pair. During gamete formation in meiosis, these alleles separate so that each gamete ends up with only one allele for that gene. When fertilization occurs, the offspring receive one allele from each parent, restoring the pair. This is why a parent with Aa can produce gametes with either A or a, and why offspring genotypes follow the idea of receiving one allele from each parent. The other options don’t fit because they describe either mixing of traits, bringing alleles together at fertilization, or the broader process of chromosome assortment, rather than the specific separation of alleles into different gametes.

Segregation is about how a gene’s two allele copies are separated when reproductive cells form. In most organisms, genes have two alleles, one on each chromosome of a homologous pair. During gamete formation in meiosis, these alleles separate so that each gamete ends up with only one allele for that gene. When fertilization occurs, the offspring receive one allele from each parent, restoring the pair.

This is why a parent with Aa can produce gametes with either A or a, and why offspring genotypes follow the idea of receiving one allele from each parent. The other options don’t fit because they describe either mixing of traits, bringing alleles together at fertilization, or the broader process of chromosome assortment, rather than the specific separation of alleles into different gametes.