REVIEW FOR QUIZ Lesson 4 Unit 2 Cells

Which one is a phenotype and which is a genotype?

A) Free or attached earlobesHair colorEye 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 GENEAnswer: ALLELE

WHICH TYPE OF DOMINANCE?

-COMPLETE DOMINANCE-INCOMPLETE DOMINANCE

-CODOMINANCE

View next 5 slides.

Complete Dominance

INCOMPLETE DOMINANCE

CODOMINANCE

CODOMINANCE

NOTHING- A JOKE

Complete Dominance is when…

A) both traits are blended togetherB) 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: DDHOMOZYGOUS 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: DdHETEROZYGOUS OR HYBRID