Mendelian Inheritance

The study of transfer of hereditary characters (genes) from parent to offspring is called genetics (from the Greek genno= cis birth). It is the science of genes. heredity and the variation of organisms. William Bateson in 1905 suggested NA ord “genetics” to describe the study of inheritance and the science of variation. Bateson first used the term “genetics” publicly at the 1 lard International Conference on

( ienetics in 190)

Heredity and variations form the basis of genetics. Humans applied knowledge of genetics to the domestication and breeding of plants and  In modern research, genetics provides important tools
for the investigation of the function of a particular gene, like analysis of genetic interactions. Genetic information are carried in chromosomes within organisms.

Mendelian Inheritance


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Genes encode the information necessary for synthesizing the amino-acid sequences in proteins. ‘these proteins play a role in determining the final phenotype, or physical appearance, of the organism. In diploid organisms, a dominant allele on one chromosome will mask the expression of a recessive gene on the other.

The phrase to code for is used to mean a gene contains the instructions about how to build a particular protein. The gene codes for the protein. Thus the concept of “one gene, one protein” was given. For example, a single gene may produce multiple products. It depends on how its transcription is regulated. Genes code for the nucleotide sequences in mRNA, ERNA and rRNA, required for protein synthesis.

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