Principle Of Inheritance And Variation Flashcards

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1
Q

Who gave term genetics ?

A

Batson

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2
Q

Father of Modern Genetics

A

Batson

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3
Q

Father of experimental genetics.

A

Morgan

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4
Q

Father of ‘Human genetics and biochemical genetics’

A

A.Garrod

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5
Q

Who discovered the first human genetic disorder?

Which disorder?

A

A.garrod.

Alkaptonurea

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6
Q

Who have the concept

‘One mutant gene,one metabolic block’

A

A.Garrod.

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7
Q

Who coined the term alleles?

A

Watson

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8
Q

What is phenocopy?

A

The diff. genotypes are placed in diff. genotypic condition then they produce same phenotype.

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9
Q

Who coined phenocopy and genocopy?

A

Johannson

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10
Q

What’s heterosis?

A

Superiority of offsprings over parents.

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11
Q

Epistasis

A

When a gene prevents expression of another ‘non-allelic gene’.

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12
Q

Ex. of epistasis

A

Hair color in dog,where I is present t becomes white.

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13
Q

Who discovered X body?

A

H. Henking

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14
Q

X body is

A

An extra X chromosome

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15
Q

Who proposed heterogametic method of sex determination?

A

Carl Correns.

It is based on no. And nature of Allosomes.

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16
Q

Who discovered “ XX-XO “ method of sex determination and in which organism ?

A

Mc Clung in grasshopper.

17
Q

Where is ZO-ZZ type of sex determination observed?

A

In butterfly and moths like fumea.

18
Q

Where is ZW-ZZ types of fertilization method observed?

A

In reptiles etc.

19
Q

Incomplete inheritance ratio

A

1:2:1

20
Q

Co dominance ratio

A

1:2:1

21
Q

Co dominance examples

A

Sickle cell anemia

AB blood group type

22
Q

A,B,O blood group discovered by

A

Landsteiner