Biology MCQs

Page No. 100

Sickle cell anemia is an example of_________________?


aChromosomal aberration

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bInsertion of gene

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cDeletion of gene

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dPoint mutation

✓


View Answer Point mutation

Embryonic induction is caused by part developing from_____________?


aEndoderm

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bEctoderm

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cMesoderm

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dExtraembryonic layers

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View Answer Mesoderm

The place of centromere where spindle fibres get attached is_________?


aKinetochore

✓


bKinochore

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cCentromere region

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dall of these

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View Answer Kinetochore

Which of the following is an autosomal disorder______________?


aDown’s syndrome

✓


bKlinifelter’s syndrome

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cTurner’s syndrome

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dJacob’s syndrome

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View Answer Down’s syndrome

Which of the following combination is an example of self replicating organelles?


aMitochondria Ribosomes

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bMitochondria Nucleus

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cMitochondria Chloroplast

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dMitochondria Vacuole

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Okazaki fragments are connected together through action of_________________?


aPrimase

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bPolymerase

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cHelicase

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dLigase

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View Answer Ligase

Chlorophyll molecule contrains __________ as central metal ion.


aFe2+

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bMg2+

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cZn2+

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dCu2+

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View Answer Mg2+

Yellow cytoplasm in ascidian gives rise to______________?


aEpidermis

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bMuscle cells

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cGut

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dNotochord

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View Answer Muscle cells

Number of nuclear pores/nucleus in an RBC are_________?


a1?3

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b3?4

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c10000

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d30000

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View Answer 3?4

Test cross is used to find_____________?


aTrait

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bPhenotype

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cGenotype

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dRatios

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View Answer Genotype

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