Biology

Objective Biology Quiz for NEET Exam

1. The genetic systems in prokaryotes and in eukaryotes: ?
(1) Are similar and enclosed in nuclei
(2) Are not similar but enclosed in nuclei in both
(3) Differ in one respect that the prokaryotes lack histones which are always found in eukaryots
(4) Differ in Several respects
2. The presence of DNA in mitochondria and in chloroplasts supports the hypothesis that?
(1) Glycolysis occurs in both mitochondria and chloroplast
(2) Mitochondria and chloroplast both originated as independent free living organism
(3) ATP is produced in both
(4) Mitochondria and chloroplast Undergo meiosis and mitosis, independently
3. Root cap is absent in ?
(1) Lithophytes
(2) Xerophytes
(3) Mesophytes
(4) Hydrophytes
4. The infloresence of wheat is ?
(1) Cymose
(2) Special
(3) Racemose
(4) Compound
5. The flower of coriander is known as?
(1) Capitulum
(2) Spadix
(3) Catkin
(4) Umbel
6. Mulberry is ?
(1) Sorosis
(2) Drupe
(3) False fruit
(4) Synconus
7. Digestive system is absent in:
(1) Liver fluke
(2) Tape worm
(3) Round worm
(4) Earth worm
8. Honey bees are member of ?
(1) Hexapoda
(2) Octapoda
(3) Decapoda
(4) Myriapoda
9. In cock-roach, respirating organs are:
(1) Lungs
(2) Skin
(3) Trachea
(4) Mouth
10. The cork in dicotyledonous plants is formed by:
(1) Phellogen
(2) Phelloderm
(3) Phellem
(4) Fascicular cambium
11. The strongest evidence that DNA is the genetic material comes from:
(1) The fact that chromosomes are made of DNA
(2) Studies on the transformation of bacterial cells
(3) The knowledge that DNA is present in nucleus
(4) That DNA has the power to duplicate itself
12. Meiosis involves ?
(1) One division of nucleus and one division of chromosome
(2) One division of nucleus and two divisions of chromosomes
(3) Two divisions of nucleus and two divisions of chromosomes
(4) Two divisions of nucleus and one division of chromosomes
13. Saliva contains which enzyme:
(1) Lipase
(2) Amylase
(3) Erepsin
(4) Trypsin
14. Brunner’s glands are situated in:
(1) Duodenum
(2) Liver
(3) Tongue
(4) Large intestine
15. After peeling apple turns brown due to:
(1) Fungus
(2) Bacteria
(3) Enzyme
(4) Virus
16. Which is a dioecious fruit plant:
(1) Jack fruit
(2) Apple
(3) Mango
(4) Mulberry
17. Potato stolon growth stops when:
(1) Tuber sets
(2) Tuber gains full size
(3) Tuber separates
(4) No tuber is formed
18. Using two pairs tall and dwarf and smooth and wrinkled seeds, the principle of independent assortment of characters is proved by the ?
(1) Observation that F, progeny is tall
(2) Appearance of tall and dwarf in 3:1 ratio and also the appearance of smooth and wrinkle seeded plants in 3:1 ratio in F2
(3) Appearance of tall and dwarf in F2 population
(4) Appearance of smooth and wrinkle seeded plants in F2 population
19. Competition for food, light and space is most severe between plants:
(1) Closely related species growing in the same habitat
(2) Closely related species growing in different habitat
(3) Distantly related species occupying the same habitat
(4) Distantly related species occupying different habitats
20. Heterophyllous plants are found as:
(1) Free floating hydrophytes
(2) Submerged hydrophytes
(3) Rooted and floating hydrophytes
(4) Halophytes
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