What is co-dominance? Explain with reference to the ABO blood group system.

Co-dominance is a genetic phenomenon where both alleles of a gene are fully expressed in the organism’s phenotype. Unlike in dominance-recessive inheritance, where one allele masks the expression of another, in co-dominance, both alleles contribute equally and are visible in the organism’s traits. This means that neither allele is dominant or recessive, and the heterozygote … Read more

State and explain Mendel’s law of independent assortment.

Mendel’s Law of Independent Assortment is another fundamental principle of genetics proposed by Gregor Mendel. This law describes how genes located on different chromosomes are inherited independently of each other. Mendel’s Law of Independent Assortment State:The Law of Independent Assortment states that alleles for different traits assort independently of one another during the formation of … Read more

State and explain Mendel’s law of segregation.

Mendel’s Law of Segregation is one of the fundamental principles of genetics, proposed by Gregor Mendel in the mid-1800s. It describes how alleles for a given trait are inherited from one generation to the next. Here’s a clear explanation of the law: Mendel’s Law of Segregation State:The Law of Segregation states that each individual has … Read more

Describe the role of genes in protein synthesis.

Genes play a crucial role in protein synthesis, which is the process by which cells create proteins. These proteins are essential for almost every function in the cell, including catalyzing biochemical reactions, providing structure, and regulating processes. The process of protein synthesis can be broken down into two major stages: transcription and translation. 1. Transcription … Read more

How do genes control inheritance of characters?

Genes control the inheritance of characteristics (or traits) through a process known as genetic inheritance, which is governed by the transfer of genetic material (DNA) from parents to offspring. Here’s how genes control this inheritance: Genes and Alleles: Genes are segments of DNA that carry the instructions for making proteins, which influence the traits of … Read more