Principle Of Inheritance And Variation Flashcards
Who gave term genetics ?
Batson
Father of Modern Genetics
Batson
Father of experimental genetics.
Morgan
Father of ‘Human genetics and biochemical genetics’
A.Garrod
Who discovered the first human genetic disorder?
Which disorder?
A.garrod.
Alkaptonurea
Who have the concept
‘One mutant gene,one metabolic block’
A.Garrod.
Who coined the term alleles?
Watson
What is phenocopy?
The diff. genotypes are placed in diff. genotypic condition then they produce same phenotype.
Who coined phenocopy and genocopy?
Johannson
What’s heterosis?
Superiority of offsprings over parents.
Epistasis
When a gene prevents expression of another ‘non-allelic gene’.
Ex. of epistasis
Hair color in dog,where I is present t becomes white.
Who discovered X body?
H. Henking
X body is
An extra X chromosome
Who proposed heterogametic method of sex determination?
Carl Correns.
It is based on no. And nature of Allosomes.
Who discovered “ XX-XO “ method of sex determination and in which organism ?
Mc Clung in grasshopper.
Where is ZO-ZZ type of sex determination observed?
In butterfly and moths like fumea.
Where is ZW-ZZ types of fertilization method observed?
In reptiles etc.
Incomplete inheritance ratio
1:2:1
Co dominance ratio
1:2:1
Co dominance examples
Sickle cell anemia
AB blood group type
A,B,O blood group discovered by
Landsteiner
