LC BIOLOGY- Asexual Reproduction/Vegetation Propagation

reproduction without the fusion of gametes

Vegetation propagation

no gametes

no variation

2 features of vegetation propagation

no gametes needed

advantage of asexual reproduction over sexual reproduction

stem e.g strawberry

root e.g dahlia

leaf e.g begonia

bud e.g onion

4 methods of vegetation propagation used by plants and for each named method, give one example of a plant that carries out that method of vegetation propagation

cutting

layering

grafting

micro propagation

Name any 4 examples of horticulturists may use to artificially propagate plants/

Give Four examples of artificial vegetation propagation

no gametes needed one parent

no variation

3 differences between sexual and asexual reproduction

mitosis

cell division involved in vegetation propagation

competition with parent

all are wiped out by disease

indicate a 2 disadvantages of vegetation propagation

fast

more reliable

cheap

three reasons horticulturists may propagate plants (advantages)

runner: runner develops from auxiliary bud

travels horizontally across ground

terminal bud sends up shoot and roots go down into the soil

explain how a plant can undergo vegetation propagation by means of a stem

tuber: is an underground stem swollen with stored food

lateral buds produce new shoots and roots using the store of food in the tuber

parent tuber eventually dies away

explain how a plant can undergo vegetation propagation by means of a stem

genetically identical

genetic make up of offspring