Biotechnology

Genetics along with Mendel’s two laws and research is now established as a mentionable branch of Biology. Mendel is now called the father of genetics…

Mendel’s Law of Genetics: 1st law:  Law of segregation or monohybrid cross- If a cross is made between two plants or animals having a pair…

For a particular characteristic if two genes are identical the genotype of those to genes is called homozygous. When an individual has two of the…

If two genes for a particular characteristic are dissimilar in nature the genotype of these two genes are called heterozygous. The cell or organism is…

A Pair of genes that are responsible for a particular characteristics lying in the particular locus of a chromosome are mutually called allele or allelomorph…

Dominant characteristics: If a cross is made between two organisms of contrasting characters, (F1) the entire hybrid offspring’s produced will be externally dominant. A dominant trait…

Recessive characteristics: If a cross made between two organisms having a pair of contrasting characteristics the unexpressed characteristics in the offspring of F1 are called…

Back Cross: When a cross is made between a heterozygous plant (Tt for tall characteristics) and a homozygous parental plant, it is said to be…

Test Cross: When a cross is made between a parental plant having purely recessive symptoms and a plant having unknown characteristics detect the genotype (homozygous…

Di-hybrid cross: When a cross is performed on the basis of two or more pairs of contrasting characteristics it is called di-hybrid cross. It is…