Download Reproduction - Xavier High School

Reproduction
Organisms producing
more organisms
Reproduction
Species
Organisms so closely
related they can mate
and produce fertile
offspring
Mule


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



Binary fission- bacteria
Budding- hydra (p 679)
Cuttings- some plant
(mums)
Runners- strawberry
Sexual
Two parents


Male
Female
Requires meiosis


Forms gametesReduces the
chromosome
number
Sexual
Requires fertilization



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



Human
Other animals
Flowering plants