Transcript Reproduction - Xavier High School

Reproduction
Organisms producing
more organisms
Reproduction
Species
Organisms so closely
related they can mate
and produce fertile
offspring
Mule
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Offspring of different
species
Sterile, cannot
produce offspring
Liger, Tiglon
2 Basic Types
Asexual
Sexual
Asexual
One parent
Requires mitosis
Offspring are identical to
the parent
Examples
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Binary fission- bacteria
Budding- hydra (p 679)
Cuttings- some plant
(mums)
Runners- strawberry
Sexual
Two parents
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Male
Female
Requires meiosis
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Forms gametesReduces the
chromosome
number
Sexual
Requires fertilization
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Union of gametes
Restores diploid #
1N + 1N = 2N
Offspring inherit ½
chromosomes from each
parent
Offspring are different
than the parents and
each other (except
identical twins)
Sexual
Examples
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Human
Other animals
Flowering plants