Biology MCQs

11. Which among the following are female sex harmones?
[A] Estrogen
[B] Progesterone
[C] Testosterone
[D] Both a and b

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12. Which virus belongs to the Hepadnaviridae family?
[A] Hepatitis A virus
[B] Hepatitis B virus
[C] Hepatitis D virus
[D] All of these

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13. Which was the first plant to live in the land?
[A] Angiosperms
[B] Bryophytes
[C] Gymnosperms
[D] Pteridophytes

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14. Which of the following is a common feature of protonema of multicellular fungi, filamentous algae, and mosses?
[A] way of nutrition
[B] diplomatic life cycle
[C] multiply by fragmentation
[D] members of the plant kingdom

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15. Which type of cocci bacteria forms a cluster and irregular pattern?
[A] Staphylococci
[B] Diplococci
[C] Tetracocci
[D] Streptococci

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16. Iodine is obtained from which of the following members?
[A] Green algae
[B] Brown algae
[C] Red algae
[D] Blue green algae

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17. An important product of the Krebs cycle is__?
[A] Water
[B] Methane
[C] ATP
[D] None of the above

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18. It is a colorless gas that acts as a signal hormone, which of the following is it?
[A] Benzene
[B] Nitric Oxide
[C] Ozone
[D] None of the above

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19. The process of development of fruit without any prior fertilization is called__.
[A] Asexual reproduction
[B] Parthenocarpy
[C] Apomixis
[D] Sexual reproduction

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20. Insertion of a bud from the desired plant into an opening in the bark of a suitable rootstock to produce a beneficial variety is called__.
[A] Budding
[B] Apomixis
[C] Sporulation
[D] Somatic hybridization

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