Advertisements
Advertisements
प्रश्न
Distinguish between pollination and fertilisation. Mention the site and product of fertilisation in a flower.
Draw a neat, labelled diagram of a pistil showing pollen tube growth and its entry into the ovule.
उत्तर
| Pollination | Fertilization |
| It is the process of transfer of pollen grains from the anther to the stigma of the pistil of the flower. | It is the process of fusion of male and female gametes resulting in the formation of zygote. |
| This process leads to fertilization. | This process leads to formation of seeds. |
| Pollen tube formation does not take place in pollination. | After pollination, pollen tube forms for fertilization to occur. |
| Pollination occurs in flowering plants. | Fertilization occurs in every living beings which undergo sexual reproduction. |
The site of fertilisation in the flower is the ovule present in the ovary.
The product of fertilisation of male and female gamete is the zygote.
APPEARS IN
संबंधित प्रश्न
Explain the events that occur in a graafian follicle at the time of ovulation and thereafter.
Explain the changes that occur in the ovary and uterus during menstrual cycle in human females. Mention the influence of pituitary and ovarian hormones in bringing these changes.
Name the Following
The term used when females stop menstruation at the age of 45-50 years.
If the corpus luteum is present in the ovary even after 72 hours after ovulationit indicates that ______.
When does ovulatory phase occur?
Which set is similar?
Mainly which type of hormones control the menstrual cycle in human beings?
Mature Graafian follicle is generally present in the ovary of a healthy human female around stet ______.
Which of the following events is not associated with ovulation in human females?
The secretory phase in the human menstrual cycle is also called:
