Q7 of 49 Page 5

Is the presence of large number of chromosomes in an organism a hindrance to sexual reproduction? Justify your answer by giving suitable reasons.

The basis of sexual reproduction is the generation of haploid gamete only so, the presence of a greater number of gametes do not affect the reproduction. For example: Fern plant has 1260 chromosomes but still it reproduces sexually.


More from this chapter

All 49 →
5

Rearrange the following events of sexual reproduction in the sequence in which they occur in a flowering plant: embryogenesis, fertilisation, gametogenesis, pollination.

 6

The probability of fruit set in a self-pollinated bisexual flower of a plant is far greater than a dioecious plant. Explain.

 8

Is there a relationship between the size of an organism and its life span? Give two examples in support of your answer.

 9

In the figure given below the plant bears two different types of flowers marked ‘A’ and ‘B’. Identify the types of flowers and state the type of pollination that will occur in them.