Think back to the first lesson on meiosis.
List the order of the phases.
Objectives
•
•
•
•
•
Describe the behaviour of the
chromosomes in the phases of
meiosis.
Outline the formation of chiasmata in
the process of crossing over.
Explain how meiosis results in an
effectively infinite genetic variety in
gametes through crossing over in
prophase I and random orientation in
metaphase I.
State Mendel’s law of independent
assortment.
Explain the relationship between
Mendel’s law of independent
assortment and meiosis.
Outcomes
3: Describe how crossing over leads
to variation.
5: Explain why there is so much
variation as a result of meiosis.
7: Evaluate how Mendel's law of
independent assortment applies to
meiosis.
Key terms: chromosome, crossing over, chiasmata, Mendel.
Outcomes
3: Describe how
crossing over leads to
variation.
5: Explain why the is so
much variation as a
result of meiosis.
7: Evaluate how
Mendel's law of
independent assortment
applies to meiosis.
Key terms: chromosome, crossing over, chiasmata, Mendel.
Outcomes
3: Describe
how crossing
over leads to
variation.
5: Explain why
the is so much
variation as a
result of
meiosis.
7: Evaluate how
Mendel's law of
independent
assortment
applies to
meiosis.
Outcomes
3: Describe
how crossing
over leads to
variation.
5: Explain why
the is so much
variation as a
result of
meiosis.
7: Evaluate how
Mendel's law of
independent
assortment
applies to
meiosis.
Key terms: chromosome, crossing over, chiasmata, Mendel.
Outcomes
3: Describe how
crossing over
leads to
variation.
5: Explain why
the is so much
variation as a
result of
meiosis.
7: Evaluate how
Mendel's law of
independent
assortment
applies to
meiosis.
Key terms: chromosome, crossing over, chiasmata, Mendel.
Outcomes
3: Describe how
crossing over
leads to
variation.
Bivalent: when
the homologous
chromosomes
have paired up
closely.
5: Explain why
the is so much
variation as a
result of
meiosis.
7: Evaluate how
Mendel's law of
independent
assortment
applies to
meiosis.
Key terms: chromosome, crossing over, chiasmata, Mendel.
Outcomes
3: Describe how
crossing over
leads to
variation.
5: Explain why
the is so much
variation as a
result of
meiosis.
7: Evaluate how
Mendel's law of
independent
assortment
applies to
meiosis.
Key terms: chromosome, crossing over, chiasmata, Mendel.
Outcomes
3: Describe how
crossing over
leads to
variation.
5: Explain why
the is so much
variation as a
result of
meiosis.
7: Evaluate how
Mendel's law of
independent
assortment
applies to
meiosis.
Key terms: chromosome, crossing over, chiasmata, Mendel.
Outcomes
3: Describe how
crossing over
leads to
variation.
5: Explain why
the is so much
variation as a
result of
meiosis.
7: Evaluate how
Mendel's law of
independent
assortment
applies to
meiosis.
Key terms: chromosome, crossing over, chiasmata, Mendel.
Outcomes
3: Describe how
crossing over
leads to
variation.
5: Explain why
the is so much
variation as a
result of
meiosis.
7: Evaluate how
Mendel's law of
independent
assortment
applies to
meiosis.
Key terms: chromosome, crossing over, chiasmata, Mendel.
Outcomes
3: Describe how
crossing over
leads to
variation.
5: Explain why
the is so much
variation as a
result of
meiosis.
7: Evaluate how
Mendel's law of
independent
assortment
applies to
meiosis.
Key terms: chromosome, crossing over, chiasmata, Mendel.
Outcomes
3: Describe how
crossing over
leads to
variation.
5: Explain why
the is so much
variation as a
result of
meiosis.
7: Evaluate how
Mendel's law of
independent
assortment
applies to
meiosis.
Key terms: chromosome, crossing over, chiasmata, Mendel.