Which of the following statement is false regarding the advantages of self-pollination?

1. In bisexual flowers where stamens and carpels mature at the same time
2. Parental characters are not preserved
3. There is no wastage of pollen grains
4. The flowers need not be large and showy

Q. Assertion (A): In protandrous flowers like sunflowers, the stamens mature before the carpels
Reason (R): When stamens and carpels mature at different times, self pollination is not possible and cross pollination becomes inevitable

Q. Select the correct pair of a statement.
A. Flowers are said to be unisexual when it contains either stamens or carpels.
B. Flower are said to be bisexual when both stamens or carpels are present.
C. If the transfer of pollen occurs in the same flower, it is referred to as cross-pollination.
D. If the pollen is transferred from one flower to another it is known as self-pollination.

Q. Statement 1: Bisexual flowers contain both stamen and pistil in their flowers.

Statement 2: Bisexual flowers can undergo both self-pollination and cross-pollination.

Q. Classify the given statements under the headings 'self pollination ' and 'cross pollination'.
a. Transfer of pollen grains from the anther to the stigma of the same flower.
b. Transfer of pollen grains from the anther to the stigma of a different flower.
c. No need of pollinators to transfer pollen grains.
d. Produces large amounts of pollen grains.
e. Requires pollinators to transfer pollen grains.