Inherittance — Biology MCQs (Class 12)
Free chapter-wise Biology MCQs with answers for MDCAT, FSc and entry tests.
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#1 When a gene at one locus interfares with ot hides the expression of gene at another locus, the phenomenon is called
A) Hypostasis
B) Epistasis
C) Co-dominance
D) Dominance
#2 Mendle is famous for his work on
A) Pisum
B) Drosophila
C) Neuropora
D) Yeast
#3 In which case the genotype and phenotype ratio will be 1:2:1
A) Complete doinance
B) Co-dominance
C) Multiple alleles
D) Incomplete dominance
#4 Alternative forms of gene are
A) Alleles
B) Linked
C) Mutant
D) Dominan
#5 A person having blood group "O" is universal donor because of
A) Adsence of antigens
B) Presence of antigens
C) Adsence of antibodies
D) Both A and C
#6 Which characteristic is controlled by a recessive gene?
A) Skin color
B) Eye color
C) Tongue rolling
D) Diabetes mellitus
#7 An example of multiple alleles in humans is that of
A) Skin color
B) Eye Color
C) Blood groups
D) Tongue rolling
#8 A cross involving one trait is called
A) Monohybrid
B) Di-hybrid
C) Polyhybrid
D) None of these
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