Asexual reproduction and cloning in plants

Asexual reproduction and cloning in plants


In natural vegetative propagation, which of the following structures are most likely to give?
Rise to new individuals: (a) stems, (b) roots, (c) buds, (d) leaves, (e) flowers?

The drawing shows a plant which reproduces vegetative.
   (a) What will need to happen before shoots A - C become independent plants?
   (b) How might a gardener assist this process?
   (c) What name is given to the horizontal stem in this kind of propagation?
   (d) Name a commercially grown fruit whose plants are propagated in this way



Before stem cuttings are planted, the cut end of the stem is often dipped in a hormone
powder. What is the point of this?

The following are thought to be some of the advantages of either vegetative reproduction or sexual reproduction: produces greater variety in the offspring, good at colonising new areas, reduces competition. From other species, maintains desirable qualities in the offspring, good at colonising favourable areas
Make a table with these qualities under the headings of 'Sexual reproduction' and 'Vegetative reproduction'.

If a gardener wanted to propagate a useful variety of apple tree in a way which maintained all its desirable qualities, which of the following techniques would be used:
   (a) Planting stem cuttings in potting compost
   (b) Grafting stem cuttings onto a rootstock
   (c) Grafting buds on to a root stock
   (d) Growing the seeds produced from the useful variety
   (e) Cross-pollinating the variety with another good variety and growing the seeds
         Resulting from the cross?

What name is given to the population of genetically identical offspring which result from a
Process of asexual (vegetative) reproduction?

Which structures of a flowering plant give rise to (a) potatoes, (b) the fleshy scales of an onion?

In the process of tissue culture in plants, what is needed to induce the formation of a complete plant, in addition to a growth medium with nutrients?

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