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Biology Past Questions

Study and practice Biology past questions with answers and detailed explanations. Then test your knowledge using our interactive CBT practice platform and prepare confidently for your upcoming examinations.

43 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10

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Question 21

neco 2002

What is NOT characteristic of fresh water habitats?

Ahigh osmotic concentration

Blow oxygen concentration

Cthey are flooded during the rainy season

Dtemperature changes daily

Ethey have limited size-and depth

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Question 22

neco 2002

In genetics, test cross is used to

Aconfirm the number of offspring in F1

Bconfirm the number of gametes present in parents

Ctest for heterozygosity

Dtest for X and Y chromosomes

Etest for the phenotypic ratio

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Question 23

neco 2002

A pair of genes which controls a trait is described as

Aallele

Bdominant

Chybrid

Drecessive

Evariant

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