Question

What is the second law of inheritance?

Answer 1

Mendel's law of inheritance:

1. Gregor Mendel conducted several experiments on pea plants for seven years and then postulated the laws of inheritance.
2. Mendel's law of inheritance includes the law of dominance, the law of segregation, and the law of independent assortment.

Law of segregation:

1. According to Mendel's law of segregation, each gene separates from the others during the gamete production, resulting in each gamete carrying only one allele for each gene.
2. The law of segregation is the second law of inheritance.
3. This law explains how during meiosis, the pair of alleles separate from each other, leaving each gamete with only one allele.
4. This law is based on the fact that only one allele is present in each gamete that is formed by the process of gametogenesis.

Basic concepts of the law of segregation:

1. There are several alleles for a single gene.
2. Every organism inherits a pair of alleles for each gene.
3. During the process of gametogenesis, when gametes are produced by meiosis, then the allelic pairs segregate, leaving each gamete with only one allele.
4. A gene has two alternate forms known as alleles.
5. One allele is dominant while the other allele is recessive.