Genetics Review Quiz

Aa, DD, Bb, yy are all examples of _______

• genotypes

• phenotypes

The physical expression of a trait is called the ...

• genotype

• phenotype

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

Genotype: TT is ...

• homozygous dominant

• homozygous recessive

• heterozygous

Cross 2 heterozygous tall pea plants. Tall (T) is dominant to short (t). What fraction of the offspring do you predict will be tall?

• 1/4

• 2/4

• 3/4

• 4/4

Genotype: Aa is ....

• homozygous dominant

• homozygous recessive

• heterozygous

Which set of alleles are considered heterozygous?

• HH

• Hh

• hh

Which of the following is a PHENOTYPE for flower color in pea plants?

• Pp

• PP

• Purple

In humans, freckles (F) on the skin are dominant to no freckles (f).  If a heterozygous parent and a recessive parent conceive, what is the chances of having a child with NO FRECKLES?

• 0%

• 50%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In a population of bees, long wings (L) are dominant over short wings (l).  Bees with long wings are ...

• heterozygous only (Ll)

• homozygous 

  dominant only (LL)

• heterozygous or 

  homozygous 

  dominant (LL or Ll)

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In guinea pigs, the allele for rough coat (R) is dominant over the allele for smooth coat (r).  A homozygous dominant guinea pig and a homozygous recessive guinea pig are mated.

What would be the phenotype of the offspring?

• 100% rough coat

• 100% smooth coat

Tags

NGSS.HS-LS3-1