ICSE/ISC Plus 2 Biology Science Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in

Question-1 F2 generation is produced by

(A) Selfing the parents	(B)Recessive cross between individual parents
(C)Crossing F1 progeny with one of the parents	(D)Selfing progeny of two individual parents

Question-2 Which of the following has the least number of chromosome?

(A) Amoeba	(B)Drosophila
(C)Pheretima	(D)Ascaris megalocephala

Question-3 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-4 Who is known as the 'father of genetics'?

(A) Fisher	(B)Mendel
(C)Aristotle	(D)Weismann

Question-5 Mirabilis jalapa is an example of

(A) Complete dominance	(B)Supplementary gene
(C)Incomplete dominance	(D)Complementary gene

Question-6 When dominant and recessive alleles express themselves together, they are called.

(A) Dominance	(B)Co- dominance
(C)Amphi dominance	(D)Preadodominance

Question-7 If a cross between two plants give 50% tall and 50% dwarf progeny, then the parents genotypes are

(A) Tt x Tt	(B)Tt x tt
(C)TT x tt	(D)TT x Tt

Question-8 Mendel's laws of heredity were, rediscovered by

(A) Three Europeans in 1865	(B)Three Europeans in around 1900
(C)Two Europeans and one Russian around 1915	(D)Two Europeans and one American around 1900

Question-9 How many pairs of contrasting characters in pea pod were chosen by Mendal?

(A) 2	(B)3
(C)4	(D)7

Question-10 The 1:2:1: ratio among pink flowers indicates the phenomenon of

(A) Linkage	(B)Dominance
(C)Dihybrid cross	(D)Incomplete dominance

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