Unit 3: Genetics
Animations
Study Guide
Chapter 13
Meiosis and Sexual Life Cycles
Review
In
reproduction, one parent produces genetically identical offspring by
fission
or
by
.
In
reproduction, two parents produce offspring that have unique combinations of
inherited from each
parent.
Genes are located on
chromosomes,
which can be visualized under the loght microscoped and arranged in ordered
pairs
called a
.
are
sex
cells
that are produced in organs called
by
meiosis.
Review: Asexual and Sexual Life Cycles
Since
meiosis
reduces the number of chromosome sets from
to
, two cellular divisions are required, preceded by a single
.
Meiosis
I is the chromosome
division.
Meiosis
II then produces
haploid daughter cells.
Review: Meiosis Animation
Summary:
difference between mitosus and meiosis.
Sexual reproduction produces genetic
by several mechanisms:
independent
,
crossing
, and
random
fertilization.
Review: Genetic Variation
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