MCQ
The pollination by ........ is called as zoophily.
- AWind
- BWater
- CAnimals
- DNone of the above
Explanation:
Pollination carried by the animals is known as zoophily.
The coloured corolla attracts insects for pollination.
It has sticky pollens which attach to the insect and are transferred from the anther to the stigma of the flower. For example, Arctium.
Pollination carried by the wind is known as anemophily.
It has lighter pollens or winged pollens which are easily carried by the wind. For example, pine.
Pollination carried by water is hydrophilly.
It has lighter pollen which is easily carried by the water currents. For example, hydrilla.
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Reason : Both bacteria and yeast multiply very fast to form huge population which expresses the desired gene.
| List$-I$ | List $- II$ |
| $(a)$ Diaphragms | $(i)$ Inhibit ovulation and Implantation |
| $(b)$ Contraceptive | $(ii)$ Increase phagocytosis of sperm within Uterus |
| $(c)$ Intra Uterine Device | $(iii)$ Absence of Menstrual cycle and ovulation following parturition |
| $(d)$ Lactational | $(iv)$ They cover the cervix blocking the entry of sperms |
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