Gentics Basis Of Inheritance
First Chapter Of MHstate board HSC book.
- 1.When the term genetics Discovered by wiilam bateson?
- A.
1904
- B.
1908
- C.
1902
- D.
1906
- 2.When two organisms are crossed, the offspring are referred to as?
- A.
The F2 generation.
- B.
Recessive.
- C.
The F1 generation.
- D.
A genotype.
- 3.A chart used to determine the offspring of a genetic cross is called a
- A.
Cross chart
- B.
Back cross chart
- C.
Punnet square
- D.
Genetic Square
- 4.What does GENOTYPE refer to?
- A.
The chromosomes of an organism
- B.
The genetic make-up of an organism
- C.
The type of gene in question
- D.
The physical expression of gene
- 5.Number of Genotype in dihybrid ratio ?
- A.
9
- B.
2
- C.
3
- D.
4
- 6.Antirrhinum majus is an example of
- A.
Co-dominanace
- B.
Law of assortment
- C.
Law of dominance
- D.
Incomplete dominance
- 7.A gene which causes death of the barrier is called
- A.
Complementry gene
- B.
Substitution gene
- C.
Inversion gene
- D.
Lethal gene
- 8.Which gene controls the ABO blood group, .
- 9.Marriage between white and black colour and in F1 genneration show skin colour is
- A.
Black
- B.
Nigro
- C.
Malenin
- D.
Mullatoes
- 10.When the Gregor Johann Mendel start the experiment on pea plant
- A.
1855
- B.
1856
- C.
1864
- D.
1865
- 11.Why Mendel select pea plant for his experiments
- A.
They are bisexual
- B.
They have short life span
- C.
Both A and B
- D.
Only A
- 12.Exceptions to Law of Dominanace is Incomplete dominance and co-dominance
- A.
True
- B.
False
- 13.Genetics is?
- A.
Study of heredity and inheritance
- B.
Study of heredity and variation
- C.
Study of variation and inheritance
- D.
Study of process of heredity
- 14.Which term was coined by johannsen?
- A.
Allele
- B.
Factor
- C.
Gene
- D.
Both A and B
- 15.What is the phenotypic ratio & number of genotype in incomplete dominance
- A.
3:1 & 3 respectivily
- B.
3:1 & 2 respectivily
- C.
1:2:1: & 2 respectevely
- D.
1:2:1: & 3 respectevely
- 16.Who is theFather of Genetics?
- A.
G.J. Mendel
- B.
William Batesson
- C.
Johannson
- D.
A.V. Leuwenhoek
- 17.What is the Genotypic ratio of dihybrid Cross
- A.
1:2:1:2:1:4:1:2:1
- B.
1:2:4:2:1:2:1:2:1
- C.
1:2:2:4:1:2:1:2:1
- D.
Above all are incorrect
- 18.What is phenotypic ratio when two genes cross in case of Quantitative inheritance
- A.
3:3:3:1
- B.
3:1
- C.
1:2:1
- D.
1:4:6:4:1
- 19.Alternative form of gene is known as
- A.
Trait
- B.
Factor
- C.
Allele
- D.
Both B & C
- 20.How much Characterare selected by mendel on his experimnt of pea plant
- A.
14
- B.
12
- C.
7
- D.
9
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