Pedigrees and Genetics

What is NOT a possible genotype for someone with type B blood?

• I^BI^B

• I^AI^B

• I^B i

• iI^B

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Colorblindness is more common in males than in females because......

• fathers pass the allele for colorblindness to their sons only
• the allele for colorblindness is located on the Y chromosome
• the allele for colorblindness is recessive and located on the X chromosome
• males who are colorblind have two copies of the allele for colorblindness

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following genotypes belongs in the red box in the Punnett square, and what would the genotype be for the trait?

• X^BX^b - female heterozygous
  
• X^bX^b - female homozygous recessive
• X^BX^B  - female homozygous dominant
• X^bY - male heterozygous recessive

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Bob is blood Type B and Hilda is Type A, their son Barry is Type O. What are the only possible genotypes of Bob and Hilda?

• Bob: I^Bi

  Hilda: I^Ai

• Bob: I^Bi

  Hilda: I^AI^A

• Bob: I^BI^B

  Hilda: I^Ai

• Bob: I^BI^A

  Hilda: I^Ai

Tags

NGSS.HS-LS3-1

If the affected female in Generation 3 mates with an affected male. What will be their offspring's genotype? 

• 50% Hybrid/50% Purebred
• 100% Homozygous Dominant 
• 100% Homozygous Recessive 
• 100% Heterozygous 

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

There are no carriers for Huntington's Disease - you either have it or you don't. Is Huntington's disease caused by a dominant or recessive trait?

• Dominant
• Recessive
• Co-dominant
• Incompletely dominant

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Is it possible for individual IV-2 to be a carrier? Why?

• No, because her parents don't have the trait.
• No, because she doesn't have the trait.
• Yes, because her siblings have it.
• Yes, because her parents are carriers.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Give the genotype for person II-1, for this autosomal trait.

• GG

• Gg

• gg

• we cannot be 100% sure of the genotype

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In humans, chromosomes 1-22 are called:

• Autosomes

• Sex chromosomes

• Chromatids

• Carotenoids

What 2 factors can a karyotype tell you?

• Gender

• Gene mutations

• Phenotype (physical appearance)

• Presence of chromosomal disorders