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Biology Past Questions

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2,572 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10

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Past Questions

2,572 questions

Question 1 of 20 2,572 total questions

Question 971

jamb 1990

An individual in the AB blood group is a universal recipient for blood donation because

Aall the red blood cells do not carry antigen

Ball the red blood cells carry antigen

Call the red blood cells carry antigen

Dthere are no anti-A and anti-B antibodies in the serum

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Question 972

jamb 1990

What stage during cell division is represented in the figure above?

AProphase

BMetaphase

CAnaphase

DTelophase

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Question 973

jamb 1990

What will be the result of the first filial generation (F₁) and the second filial generation (F₂) of a mono-hybrid cross between pure line normal-winged Drosophilia flies and pure line short-winged flies, if the gene for the normal wing is dominant?

AF₁ flies all short-winged and F₂ flies all normal-winged

BF₁ flies all normal and F₂ flies all short-winged

CF₁ flies all short-winged and three-quarters of F₂ flies are short-winged

DF₁ flies all normal-winged and three-quarters of F₂ flies are normal-winged

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Question 974

jamb 1990

In organism where the 2nd number of chromosomes is 16, the number of chromosomes in each gamete will be

A32

B16

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Question 975

jamb 1990

The part of the ear that is concerned with balance is the

Asemi-circular canals

Bincus

Cmalleus

DEustachian tube

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Question 976

jamb 1990

The elephant grass is propagated vegetatively by means of

Acorms

Bbubils

Csuckers

Dstolons

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Question 977

jamb 1990

The type of placentation shown in the figure above is a

Aparietal

Bmarginal

Caxile

Dfree-central

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Question 978

jamb 1990

Fruits which develop without fertilization are described as

Asimple

Bpathencorpic

Caggregate

Dcompound

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Question 979

jamb 1990

During mammalian embryo development, large amounts of oestrogen and progesterone are produced in the

Aumbilical cord

Bamnion

Cplacenta

Damniotic fluid

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Question 980

jamb 1990

Muscles are indirectly attached to bones by means of

Aligaments

Bmembranes

Ctendons

Dsutures

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Question 981

jamb 1990

Etiolation is caused by the influence of

Aminerals salt

Bwater

Ccarbondioxide

Dlight

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Question 982

jamb 1990

Excretory products responsible for the red, purple and blue colours of flowers are called

Aalkaloid

Btannins

Canthocyanins

Dresins

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Question 983

jamb 1990

Transpiration can be measured with a

Aphotometer

Bhygrometer

Cpotometer

Dbarometer

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Question 984

jamb 1990

If a ring of bark and phloem is removed from a stem, the

Aplant dies immediately

Bplant dies after two days

Cmovement of food is not affected

Dmovement of minerals is hardly affected

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Question 985

jamb 1990

The vilius in the small intestine is significant because it

Aincrease the surface area for absorption

Bincrease the surface area for digestion

Cassists in mixing digested food

Dassists in filtering undigested food

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Question 986

jamb 1990

The organ which secretes digestive enzymes as well as hormones is the

Aliver

Bsalivary gland

Cpancreas

Dspleen

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Question 987

jamb 1990

Which of the following food substance will produce a brick-red colour when warmed with Benedict's solution?

AGlucose

BStarch

CEgg white

DMaltose

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Question 988

jamb 1990

The first step in the process of photosynthesis is the

Aactivation of the chlorophyll

Bphotolysis of water

Creduction of carbondioxide

Dformation of sugar

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Question 989

jamb 1990

The mode of nutrition in which digestion is extracellular is

Aholophytic

Bparasitic

Cholozoic

Dsaprophytic

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Question 990

jamb 1990

Which type of the following cells is thin-walled and living at maturity?

ACollenchyma

BSieve tube

Cxylem vessel

Dsclerenchyma

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