Advertisements
Advertisements
प्रश्न
Fill in the following blank with suitable word :
The male organ of reproduction in the flower is the.......... .
Advertisements
उत्तर
The male sex organ of a flower is stamen.
APPEARS IN
संबंधित प्रश्न
A student while observing an embryo of a pea seed in the laboratory listed various parts of the embryo as given below:
Testa, Tegmen, Radicle, Plumule, Micropyle, Cotyledon.
On examining the list the teacher remarked that only three parts are correct. Select three correct parts from the above list:
(a) Testa, Radicle, Cotyleddon
(b) Tegmen, Radicle, Micropyle
(c) Cotyledon, Plumule, Testa
(d) Radicle, Cotyledon, Plumule
A student has to perform the experiment "To identify the different parts of an embryo of a dicot seed." Select from the following an appropriate group of seeds:
(a) Pea, gram, wheat
(b) Red kidney bean, maize, gram
(c) Maize, wheat, red kidney bean
(d) Red kidney bean, pea, gram
Explain what you understand by sexual reproduction.
The process of fusion of the male and female gametes is called ______.
Fill in the following blank with suitable word :
Ovules contain ......... gametes of a plant.
What is seed?
Mention the function of Anther.
Give one example each of unisexual and bisexual flowers. Differentiate between the two types of pollination that occur in flowers. What happens when a pollen lands on a suitable stigma? Write about the events that occur till the seed formation in the ovary.
List any two differences between pollination and fertilization.
Identify the odd. Stigma, Style, Pollen, Ovary.
Answer the following question.
How does suitable pollination lead to fertilization?
Accessory whorls : Calyx and corolla : : essential whorls : ______________
The essential parts of a flower are ______.
Antipodal cells are present towards the ______ in an anatropous ovule.
Gloriosa superba exhibits ______.
Variations occur as a result of ______
Which among the following statements are true for unisexual flowers?
- They possess both stamen and pistil
- They possess either stamen or pistil
- They exhibit cross pollination
- Unisexual flowers possessing only stamens cannot produce fruits
Is the chromosome number of zygote, embryonal cells and adult of a particular organism always constant? How is the constancy maintained in these three stages?
The pollen tube usually enters the embryo sac ______.
