REVIEW FOR QUIZ Lesson 4 Unit 2 Cells. Which one is a phenotype and which is a genotype? A) Free or attached earlobes Hair color Eye color Answer: Phenotype.

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Presentation transcript:

REVIEW FOR QUIZ Lesson 4 Unit 2 Cells

Which one is a phenotype and which is a genotype? A) Free or attached earlobes Hair color Eye color Answer: Phenotype B) Ee Dd BB Answer: Genotype

EXPLAIN THE DIFFERENCE BETWEEN A PHENOTYPE & GENOTYPE Answer: A phenotype shows on the outside-all traits. A genotype MAY show on the outside- the genetic make-up

WHO AM I? I AM AN ALTERNATIVE FORM OF A GENE Answer: ALLELE

WHICH TYPE OF DOMINANCE? -COMPLETE DOMINANCE -INCOMPLETE DOMINANCE -CODOMINANCE View next 5 slides.

Complete Dominance

INCOMPLETE DOMINANCE

CODOMINANCE

NOTHING- A JOKE

Complete Dominance is when… A) both traits are blended together B) only one trait shows (dominant one) C) both traits are seen equally so both show at the same time.

A) BOTH TRAITS ARE BLENDED TOGETHER B) ONLY ONE TRAIT SHOWS (DOMINANT ONE) C) BOTH TRAITS ARE SEEN EQUALLY SO BOTH SHOW AT THE SAME TIME. INCOMPLETE DOMINANCE is when…

A) BOTH TRAITS ARE BLENDED TOGETHER B) ONLY ONE TRAIT SHOWS (DOMINANT ONE) C) BOTH TRAITS ARE SEEN EQUALLY SO BOTH SHOW AT THE SAME TIME. CODOMINANCE is when…

Mary is tall like her mother. Her sister, Jamie, is short like her father. If tall is dominant over short, what is the genotype for each sister? If you can’t determine this explain why. Jamie is tt or pure bred short (since short shows) Mary is hybrid tall Tt- You know this since her mother must be Hybrid-Jamie has tt.

EXAMPLE: DD HOMOZYGOUS OR PURE BRED If the alleles match, what can it be called. Name two ways it can be stated.

If the alleles DO NOT match, what can it be called. Name two ways it can be stated. EXAMPLE: Dd HETEROZYGOUS OR HYBRID