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Question-1
When dominant and recessive alleles express themselves together, they are called.
(A)
Dominance
(B)
Co- dominance
(C)
Amphi dominance
(D)
Preadodominance
Question-2
Which trait of garden pea studied by Mendal was a recessive feature?
(A)
Green seed colour
(B)
Green pod colour
(C)
Round seed shape
(D)
Axial flower position
Question-3
The presence of continuous phenotypic variation in an F1-generation suggests that a character is inherited by
(A)
epistasis
(B)
recombination
(C)
genelinkage
(D)
polygenic inheritance
Question-4
The dihybrid ratio in F2- generation is
(A)
3:1
(B)
2:1:2
(C)
1:1:1:1
(D)
9:3:3:1
Question-5
Who is known as the 'father of genetics'?
(A)
Fisher
(B)
Mendel
(C)
Aristotle
(D)
Weismann
Question-6
Mendel enunciated
(A)
Two principles of inheritance
(B)
Three principles of inheritance
(C)
Four principles of inheritance
(D)
Five principled of inheritance
Question-7
If a homozygous red flowered plant is crossed with a homozygous white flowered plant, the offsprings will be
(A)
All red flowered
(B)
All white flowered
(C)
Half red flowered
(D)
Half white flowered
Question-8
The law of segregation of gametes was proposed by
(A)
Mendel
(B)
De vries
(C)
Huxley
(D)
Robert Hook
Question-9
In order to find out the different types of gametes produced by a pea plant having the genotype Aa Bb, it should be crossed to a plant with the genotype
(A)
aaBB
(B)
AaBb
(C)
AABB
(D)
aabb
Question-10
The term allelomorphic implies
(A)
Any two characters
(B)
Sex linked characters
(C)
A pair of contrasting characters
(D)
A pair of non contrasting characters
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Plus 2 Biology Science
ICSE/ISC
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