agriculture MCQs – Page 81

Practise multiple-choice questions from agriculture for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

agriculture Mcqs

1. soil science 2. agronomy 3. entomology 4. water management 5. horticulture 6. agricultural economics 7. plant pathology 8. food technology 9. animal husbandry 10. plant breeding and genetics

1601. Surface temperature of sun is___________________?
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A. 2000C

B. 100,000C

C. 500C

D. 6000C

1602. Chemically DNA differs from RNA by __________________?
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A. Deoxyribose and thymine is present in DNA and ribose and Ural in RNA

B. Ribose and thymine in DNA and deoxyribose and uracil in RNA

C. Deoxyribose in DNA and ribose in RNA

D. Thymine present in DNA and Uralic in RNA

1603. A reproductive part of the plant which is responsible for the production of fruits and seeds is called ________________?
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A. All the above

B. Flower

C. Corolla

D. Calyx

1604. How much area in Pakistan is under horticultural crops ___________________?
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A. 25%

B. 3%

C. 6%

D. 10%

1605. When red tall plant is crossed with dwarf white plant all the plants of F, are found to be tall red. which of the following ratio will be available when a test cross is made_________________?
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A. 3:01

B. 1:02:01

C. 1:1:1:1

D. 1:02:03

1606. A branch of horticulture dealing with the production and marketing of vegetable is called__________________?
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A. Viticulture

B. Pomology

C. Sericulture

D. Olericulture

1607. Eugenics refers to__________________?
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A. Experimental alterations in the structure of the genes

B. Science concerned with improvement of heredity of human race

C. Genetics of eukaryotes

D. Science concerned with improvement of heredity of animals

1608. Which of the cell organelle is considered to be rich in catabolic enzymes_____________________?
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A. Mitochondria

B. Lysosome

C. Golgi bodies

D. Endoplasmic reticulum

1609. The term gene was coined by__________________?
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A. Punned

B. Darlington

C. Batson

D. Johnnsen

1610. A cross of unlike organisms is termed as____________________?
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A. Hybrid

B. Backcross

C. None of the above

D. Heterosis

1611. Breeder seed is the progeny of__________________?
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A. Nucleus seed

B. Cenified seed

C. Foundation

D. Registered seed

1612. Formation of male and female gametes in the flower is called__________________?
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A. REproduction

B. Zygote formation

C. Gametogenesis

D. Fertilization

1613. An individual with two identical members of a part of geneue factors is called__________________?
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A. Hybrid

B. Homozygous

C. Heterozygous

D. Dominant

1614. The suppression of the action of a gene or genes by a gene or genes not allelomorphic to these suppressed is known as __________________?
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A. Epistasis

B. Episode

C. Co dominance

D. Dominance

1615. Which is the suitable perennial grass for lean periods__________________?
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A. Marvel

B. Para

C. Napier

D. Anjan

1616. Male sterility in flowering plant was first reported by___________________?
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A. Brewbaker (1810)

B. Stout (1917)

C. Gerstel (1900)

D. Koelreuter (1763)

1617. Maize has 10 pairs of chromosomes. how many linkage groups will be present if all the genes are mapped__________________?
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A. 10

B. 15

C. 40

D. 20

1618. Calyx and corolla together are called__________________?
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A. Petals

B. Epidermus

C. Sepals

D. Perianth

1619. According to national commission of Pakistan, post harvest losses in fruits are____________________?
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A. 30-50%

B. 20-25%

C. 20-40%

D. 60-70%

1620. A mutant organism (bacterium) that will not grow on a minimal medium does so on the addition of some grown factor is known as __________________?
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A. Auxotroph

B. Axenema

C. Autotrophy

D. Heterotroph

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