Plant Reproduction

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  • Created by: GGB2016
  • Created on: 21-06-16 17:17

1. What is a disadvantage of self pollination?

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

2. What is the function of the tube nucleus?

  • Fuses with the ovary to form the testa
  • Fuses with the micropyle to form the fruit
  • Fuses with 2 nuclei in the ovule to form the endosperm
  • Fuses with a sperm nuclei to form the egg

3. What is the function of the generative nucleus?

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

4. What becomes the fruit?

  • Outer integument
  • Ovary
  • Embryo sac
  • Fertilised ovule

5. What becomes the testa?

  • Fertilised ovule
  • Outer integument
  • Embryo sac
  • Ovary

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.

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