Biology MCQs

Page No. 100

Sickle cell anemia is an example of_________________?


aChromosomal aberration


bInsertion of gene


cDeletion of gene


dPoint mutation


View Answer Point mutation

Embryonic induction is caused by part developing from_____________?


aEndoderm


bEctoderm


cMesoderm


dExtraembryonic layers


View Answer Mesoderm

The place of centromere where spindle fibres get attached is_________?


aKinetochore


bKinochore


cCentromere region


dall of these


View Answer Kinetochore

Which of the following is an autosomal disorder______________?


aDown’s syndrome


bKlinifelter’s syndrome


cTurner’s syndrome


dJacob’s syndrome


View Answer Down’s syndrome

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


aMitochondria Ribosomes


bMitochondria Nucleus


cMitochondria Chloroplast


dMitochondria Vacuole



Okazaki fragments are connected together through action of_________________?


aPrimase


bPolymerase


cHelicase


dLigase


View Answer Ligase

Chlorophyll molecule contrains __________ as central metal ion.


aFe2+


bMg2+


cZn2+


dCu2+


View Answer Mg2+

Yellow cytoplasm in ascidian gives rise to______________?


aEpidermis


bMuscle cells


cGut


dNotochord


View Answer Muscle cells

Number of nuclear pores/nucleus in an RBC are_________?


a1?3


b3?4


c10000


d30000


View Answer 3?4

Test cross is used to find_____________?


aTrait


bPhenotype


cGenotype


dRatios


View Answer Genotype

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