Plant reproduction Flashcards
Advantages of sexual reproduction
Genetic variation (Genes) Farmers can produce better fruit by cross pollinating two parents with desirable traits
Disadvantages of sexual reproduction
Requires two individuals.
Energy is needed
Dependent on agents of reproduction
Genetic variation may cause offspring to inherit a recessive gene that may lower its chances of survival.
It takes a longer period of time to germinate than asexual reproduction.
Advantages of asexual reproduction
Large number of offspring produced rapidly in favourable conditions
Energy expenditure is low; no gametes
Offspring easily adapts in same environmental conditions as parent
Disadvantages of asexual reproduction
it does not lead to genetic variation in a population.
the species may only be suited to one habitat.
disease may affect all the individuals in a population
Male parts of a flower
Stamen Anther Filament Pollen grain Gametes
Female of parts of a flower
Stigma Style Ovary Ovule Seed
What do the ovary and ovule develop into?
Ovule - Seed
Ovary - Fruit
What is the difference between pollination and fertilisation?
The main difference between pollination and fertilization is that pollination is the deposition of pollen grains from the anther to a stigma of a flower whereas fertilization is the fusion of the haploid gametes, forming a diploid zygote.
Methods of asexual reproduction
Cuttings Runners Stolons Bulbs Tubers Corms Grafting Tissue Culture
Asexual vs sexual reproduction
Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes, while sexual reproduction is the opposite.
