A cross between tall pea plant and its recessive parent is known as 

(1) Back cross

(2) Test cross

(3) Recessive cross

(4) Dominant cross

Subtopic:  Monohybrid Cross: Further Understanding |
 92%
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What will be the genotype of parental plants if they produced 25 AA : 48 Aa : 26 aa 

(1) AA and AA

(2) AA and aa

(3) Aa and Aa

(4) aa and aa

Subtopic:  Monohybrid Cross: Further Understanding |
 84%
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Which of the following was not explainedby the Mendel’s law of dominance? 

(1) Characters are controlled by discrete units called factors.

(2) Factors occur in pairs.

(3) Every factor has alternate forms known as alleles

(4) In a dissimilar pair of factors one member of the pair dominatesthe other.

Subtopic:  Dominance Deviation from Mendel: 1 |
 66%
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Who was the first to use statistical analysis and mathematical logics for solving biological problems? 

(1) Francis crick

(2) Gregor Mendel

(3) Hugo de vries

(4) W. Bateson

Subtopic:  Introduction to Genetics: 1 |
 96%
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If F2 dwarf plants were self-pollinated then the genotype of F3 & F4 plants is 

(1) TT and Tt

(2) tt and tt

(3) tt and Tt

(4) Tt and Tt

Subtopic:  Monohybrid Cross: 1 |
 75%
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Trait expressed in F1 generation is 

(1) Parental

(2) Recessive

(3) Dominant

(4) Recombinant

Subtopic:  Monohybrid Cross: 1 |
 80%
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In a true breeding tall or dwarf pea variety the possible set of allelic pair(s) of genes for height are

(1) TT, Tt, tt

(2) TT, tt

(3) TT

(4) tt

Subtopic:  Monohybrid Cross: 1 |
 56%
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Which of the following is a monohybrid? 

(1) TT

(2) tt

(3) Tt

(4) None

Subtopic:  Monohybrid Cross: 1 |
 78%
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Test cross is used to predict the

(1) Phenotype of test organism

(2) Sex of test organism

(3) Genotype of test organism

(4) Genotypic ratio.

Subtopic:  Monohybrid Cross: Further Understanding |
 86%
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Genotypic and phenotypic ratios of monohybrid cross are

(1) 3:1 and 1:2:1

(2) 1:2:1 and 3:1

(3) 1:2:1 and 1:2:1

(4) 3:1 and 3:1

Subtopic:  Monohybrid Cross: 1 |
 81%
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