Genetics and Race

The exact genetic makeup of an organism, such as RR, Tt, PP is its?

• phenotype
• dominance
• genotype
• trait

TT,tt,PP,pp,SS,ss are examples of alleles that are?

• homozygous
• heterozygous
• different
• homologous 

"The Great White Shark was 20 feet in length.  Phenotype or Genotype?

• phenotype
• genotype

Y for yellow body is dominant over y for blue body.  What alleles would produce yellow bodies?

• YY,yy
• Yy,yy
• YY only
• YY,Yy

Which of the following alleles is homozygous (purebred) recessive?

• TT

• Tt

• tt

• ts

A physical characteristic that can be passed from parent to offspring.

• behavior
• trait
• strong muscles
• ability to fly a plane.

Red (R) is dominant over white (r). How can a flower be white?

• It can have RR and be white.

• It has to have rr.

• It has to have rR

• There is no way it can be white until the third generation.

G = green, g = yellow
The genotype for a yellow plant is...

• GG
• Gg
• gg
• all of the choices result in yellow

Which of the following is an inheritable genetic trait?

• language

• type of music you like

• eye color

• slow growth due to insufficient nutrition.

having two different genes for a trait (sometimes called hybrid).

• protein
• homozygous
• heterozygous
• genotype