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Hello!  Welcome to Test Biology Mock 3 - Reproduction in Flowering Plants

Instructions:

Time: 15 min                                                                                                         Full Marks: 120

  1. All questions carry equal marks and all 30 questions carry 4 marks each.
  2. You will be awarded minus one marks for each wrong answer.
  3. There is no deduction for NOT attempted question.

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1. If the Nucellus cell of an Angiosperm contains 24 Chromosomes present in pollen grains, endosperm and embryo will be -
2. How many meiotic divisions are are required for the formation of 200 seeds of capsella
3. Low temperature induction of germination is called -
4. What type of pattern of endosperm, development in capsella
5. Apogamy is
6. In embryo sac, n, 2n, 3n conditions are found respectively in
7. Rarely among Angiosperms, the pollen grains influences the endosperm. This is called as
8. Mark the correct sequence -
9. For good growth of pollen tube necessary element is
10. Which type of association is found in entomophilous flower and pollination agent
11. Polygonum type of embryo sac is
12. Plants which flower only once in their life are termed as -
13. A scion is grafted to a stock . The quality of fruits produced will be determined by the genotype of-
14. Endosperm is consumed by the developing embryo in the seed of-
15. Both autogamy and geitonogamy are prevented in -
16. Assertion- In legume plants, naturally self-pollination takes place.
Reason - Both the types of reproductive organs are present inside the keel and it always remains closed.

A - Both assertion and reason are true and the reason is the correct explanation of the assertion.

B - Both assertion and reason are true but the reason is not the correct explanation of the assertion.

C -  If the assertion is true and the reason is false.

D-If both assertion and reason are false.
17. Assertion - Night-flowering plants are entomophilous.
Reason - Flowers of these plants are odorless.

A - Both assertion and reason are true and the reason is the correct explanation of the assertion.

B - Both assertion and reason are true but the reason is not the correct explanation of the assertion.

C -  If the assertion is true and the reason is false.

D-If both assertion and reason are false.
18. Assertion- Double fertilization is the universal feature of all plants.
Reason - In this fusion of only male gametes and secondary nucleus takes place.

A - Both assertion and reason are true and the reason is the correct explanation of the assertion.

B - Both assertion and reason are true but the reason is not the correct explanation of the assertion.

C -  If the assertion is true and the reason is false.

D-If both assertion and reason are false.
19. Assertion - Pollen is known as the first cell of the female gametophyte.
Reason - Pollen grains are formed by microgametogenesis.

A - Both assertion and reason are true and the reason is the correct explanation of the assertion.

B - Both assertion and reason are true but the reason is not the correct explanation of the assertion.

C -  If the assertion is true and the reason is false.

D-If both assertion and reason are false.
20. Assertion - The unit of androecium is called Stamen.
Reason - The most important part of microsporophyll is anther.

A - Both assertion and reason are true and the reason is the correct explanation of the assertion.

B - Both assertion and reason are true but the reason is not the correct explanation of the assertion.

C -  If the assertion is true and the reason is false.

D-If both assertion and reason are false.
21. Keel is the characteristics of the flowers of :
22. Nucellar polyembryony is reported in species of
23. Fusion of dissimilar gametes is known as
24. Parthenogenesis occurs when :
25. What is the liquid part of green coconut ?
26. In Gymnosperms the seeds are naked because they lack -
27. What is the eyes of potato
28. The main function o tapetum is -
29. In the anther wall -
30. Assertion- In pinus, symbiosis furnished by mycorrhiza.
Reason - In mycorrhiza, symbiosis is established between fungus and root of pinus.

A - Both assertion and reason are true and the reason is the correct explanation of the assertion.

B - Both assertion and reason are true but the reason is not the correct explanation of the assertion.

C -  If the assertion is true and the reason is false.

D-If both assertion and reason are false.