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Question-1
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-2
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
Question-3
The phenomenon, where a phenotype intermediate to the dominant and recessive type is obtained, is called
(A)
Mixed dominance
(B)
Major dominance
(C)
Complete dominance
(D)
Incomplete dominance
Question-4
How many pairs of contrasting characters in pea pod were chosen by Mendal?
(A)
2
(B)
3
(C)
4
(D)
7
Question-5
If hybrid red flowered plants of pea are crossed back to pure red flowered parent plant, the progeny will show
(A)
All red flowered plants
(B)
All white flowered plants
(C)
3 red and 1 white flowered plants
(D)
50% red and 50% white flowered plants.
Question-6
An externally observable characters of an individual are called
(A)
Phenotype
(B)
Genotype
(C)
Homozygous
(D)
Heterozygous
Question-7
In hybridization, Tt x tt give rise to the progeny in the ratio of
(A)
1:1
(B)
1:2
(C)
2:1
(D)
1:2:1
Question-8
The organisms phenotypically similar but genotypically different are said to be
(A)
Multizygous
(B)
Homozygous
(C)
Heterozygous
(D)
Monozygous
Question-9
The term independent assortment means
(A)
Separation of parental characters
(B)
Separation of characters of one parent
(C)
Combination of parental characters
(D)
Non separation of characters of one parent
Question-10
Genetic variation arised by
(A)
Nucleous
(B)
Mutation
(C)
Recombination
(D)
Both 2 and 3
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Plus 2 Biology Science
ICSE/ISC
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