#genticsterms #shortnotesofgenetics #genetics

Introduction
#Genetics term was given by w.bateson.
Genetics=collectuve study of heredity and variation.

Haredity = Transmission of genetics characters from parent to offspring.
Variation = Individual of same species have some difference,these are called variation.

G.j mendal = father of Genetics
W.bateson = father of modern genetics.
Morgan = father of experimental genetics.
                   He perfromed experiment on drosophila                      and proposed various concepts like linkag,sex linkage,crossing over ,criss cross inheritance.


Some genteical terms
1. Factors :- unit of heredity which is responsible for inheritance and appearance of characters.

2. Allele:- alternative forms of a gene which are located on same position on the homlogous chromosome.

3. Homozygous:- a zygote is formed by fusion of two gametes having indentical factors is called homozygous.

4. Heterzygous:- a zygote is formed by fusion of two different types of gametes carrying different factors called heterozygote.

5. Hemizygous:- if individual contains only one gene of a pair then individual said to be hemizygous.

6. Phenotype :- it is the external and morphological appearance of an organism for a particular character.

7. Phenocopy :- if different genotype are placed in different environment condition then they produce same phenotype.

8. Genotype:- the Genetic constitution or genetic make- up of an orgainsm for a particular character.