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SEXUAL REPRODUCTION IN FLOWERING PLANTS(I)
Question 351 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Which of the following is true regarding Polyembryony?
(i) Formed due to the presence of more than one embryo sac in an ovule.
(ii) Presence of more than one egg cell in an embryo sac.
(iii) Fertilization between synergids.
(iv) Fertilization between antipodals.
(i) Formed due to the presence of more than one embryo sac in an ovule.
(ii) Presence of more than one egg cell in an embryo sac.
(iii) Fertilization between synergids.
(iv) Fertilization between antipodals.
(ii), (iii) and (iv) | |
(i) and (ii) | |
(i), (iii) and (iv) | |
(i), (ii), (iii) and (iv) |
Question 352 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Match the following
a. False fruit | 1. Ground nut |
b. Parthenocarpic fruit | 2. Barley |
c. Albuminous seeds | 3. Black pepper; |
d. Non albuminous seeds | 4. Banana |
e. Perispermic seeds | 5. Strawberry |
a=5; b=2; c=4; d=1; e=3 | |
a=1; b=3; c=5; d=4; e=2 | |
a=2; b=4; c=1; d=3; e=5 | |
a=5; b=4; c=2; d=1; e=3 |
Question 353 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
After culturing the anther of a plant, few diploid plants were got along with haploid plant. Which of the following part might have given rise to diploid plant?
Vegetative cells of pollen | |
Exine of pollen wall | |
Cells of anther wall | |
Generative cell of pollen |
Question 354 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Assertion: Generally megaspore mother cell undergoes meiosis to produce four megaspores in angiosperms.
Reason: Megaspore is the first cell of male gametophyte.
Reason: Megaspore is the first cell of male gametophyte.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion | |
Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion | |
Assertion is true but Reason is false | |
Both Assertion and Reason are false |
Question 355 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
An interesting modification of flower shape for insect pollination occurs in some orchids in which a male insect mistakes the pattern on the orchid flower for the female of his species and tries to copulate with it, thereby pollinating the flower. This phenomenon is called:
Pseudo Parthenocarpy | |
Pseudocopulation | |
Pseudo pollination | |
Pseudo fertilization |
There are 355 questions to complete.