Agriculture MCQs

Page No. 93

When two genes are situated very close together in a chromosome_____________________?


aThe percentage of crossing over between them is very

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bHardly any cross over are detected

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cNo crossing ever can ever takes place between them

✓


dOnly double cross over can take place between them

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Eugenics refers to__________________?


aScience concerned with improvement of heredity of animals

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bScience concerned with improvement of heredity of human race

✓


cExperimental alterations in the structure of the genes

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dGenetics of eukaryotes

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The term gene was coined by__________________?


aBatson

✓


bJohnnson

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cPunned

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dDarlington

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View Answer Batson

Theory of mutation was given by___________________?


aMendel

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bDe Vries

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cTschermak

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dWatson

✓


View Answer Watson

A normal plant suddenly started reproducing parthengentically. the number of chromosomes of the second generation compared to the parent plant will be____________________?


aDouble

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bOne half

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cOne fourth

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dSame

✓


View Answer Same

A cross of hybrid with one of its recessive parent is termed____________________?


aTest cross

✓


bBack cross

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cHybridization

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dTrihybrid

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View Answer Test cross

The physical appearance of an organism is denoted by____________________?


aPhotocopy

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bPrototype

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cPhenotype

✓


dApheliotropic

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View Answer Phenotype

A cross of unlike organisms is termed as____________________?


aHybrid

✓


bHeterosis

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cBackcross

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dNone of the above

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View Answer Hybrid

Abnormal cell with random number of chromosomes is__________________?


aAnnapolis

✓


bHeterckaryotic

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cpolyploidy

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dhaploid

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View Answer Annapolis

which of the following probably occur when a diploid cell undergoes normal meiotic division________________?


aAll dominant genes will segregate together into daughter cells

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bAll homologous chromosome pairs will separate

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cAll daughter cells will have different homologous chromosome pairs

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dAll linkage group will be disrupted

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