Bio1151
Chapter 13
9
In
reproduction, one parent produces genetically identical offspring _mov_13,2 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 light
microscope
to create a
.
are
sex
cells
that are produced in organs called
by
meiosis
.
Asexual and Sexual Life Cycles and Meiosis Overview:
Since
meiosis
reduces the number of chromosome sets from
to
, two cellular _ANI_13,2 divisions are required, preceded by a single
.
Meiosis
I is the chromosome
division.
Meiosis
_ANI_13,1 II then produces
haploid daughter cells.
Review: Meiosis Animation
Summary
: difference between mitosis and meiosis.
Sexual reproduction produces genetic
by several mechanisms:
independent
,
crossing
, and
random
fertilization.
Review: Genetic Variation