Other questions in this quiz

2. What is pollination?

  • The production of CO2 in a plant
  • The transfer of pollen from anther to stigma
  • The production of an egg cell
  • The transfer of pollen from stigma to anther

3. What is a disadvantage of self pollination?

  • Variation increases within individuals
  • Energy consumption is high as many gametes must be produced
  • There's a lack of variation, decreasing the chance of survival
  • Favourable gene combinations are retained

4. What type/how many cells are produced when a mother cell undergoes meiosis?

  • Microspores - 4
  • Endosperms - 3
  • Micropyles - 4
  • Zygotes - 3

5. What is the function of the generative nucleus?

  • Controls growth of the pollen tube
  • Divides by meiosis to form egg cells
  • Divides by mitosis to form sperm nuclei
  • Forms the endosperm

Comments

HonorPoulton

There are some errors in here, the Tube nucleus in the pollen grain controls the growth of the pollen tube before disintegration.

It is the generative nucleus which consists of the two male nuclei. One of these fuses with the polar nucleus to form the triploid endosperm tissues which will become the endosperm and the other fuses with the oosphere to divide by mitosis to become the embryo.

Similar Biology resources:

See all Biology resources »See all DNA, genetics and evolution resources »