Genetics Review

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Genetics Review

• Punnet Squares,
• Probability,
• and Meiosis

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You Dont Have a Clue!
Homozygous
Allele
Recessive
Punnett Square
Gene
Phenotype
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You Dont Have a Clue!
Trait
Genotype
Dominant
Fertilization
Heterozygous
Probability
4
You Dont Have a Clue!
Haploid
Anaphase 2
Gamete
XY
Inherit
Egg cell
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You Dont Have a Clue!
Male sex cell
Results in 4 Haploid cells
XX
Heredity
Prophase 1
Crossing over
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Use Whiteboards to Draw

• Metaphase 1

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Use Whiteboards to Draw

• Prophase 1

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Use Whiteboards to Draw

• Crossing over

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Use Whiteboards to Draw

• Anaphase 2

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Use Whiteboards to Draw

• Telophase 2

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Explain

• 3 most important things that happen during
  PROPHASE 1

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ANSWER

• 1. Nuclear membrane breaks down
• 2. DNA condenses into chromosomes
• 3. Crossing over

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Explain

• Key occurrences during ANAPHASE 2

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ANSWER

• Sister chromatids SEPARATE, and move to opposite
  ends of the cell.

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Explain

• Outcome of TELOPHASE 2

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ANSWER

• 4 cells (Gametes) that are HAPLOID (have only 1
  copy of each chromosome)

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Think Fast!!! What phase of MEIOSIS?
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Think Fast!!! What phase of MEIOSIS?
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Think Fast!!! What phase of MEIOSIS?
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Key Vocab Terms

• Gene
• Genotype
• Phenotype
• Fertilization
• Allele
• Dominant
• Recessive
• Homozygous

• Heterozygous
• Probability
• Trait
• Gamete
• Meiosis (1 and 2)
• Haploid
• Diploid
• Sex chromosome