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Define asexual reproduction
reproduction with one parent and no fusion of gametes, producing genetically identical offsprings
What are the advantages of asexual reproduction?
Only one parent needed
rapid increase in population
advantageous characteristics retained
What are the disadvantages of asexual reproduction?
little/no genetic variation
Therefore all individuals may have similar susceptibility.
Define cross pollination
transfer of pollen grain from an anther to the stigma of a flower on a different plant but same species
Why do wind-pollinated flowers have large, feathery and exposed stigma?
large surface area increases the chance of catching a pollen
What is artificial insemination?
sperm/semen is collected from a selected male and artificially introduced into the female reproductive tract