Genetics Test Review

The ability to roll the tongue is thought to be controlled by a dominant allele (R). What percent of offspring from crossing two heterozygous (Rr) parents are most likely to NOT have the tongue-rolling trait?

• 10%
• 50%
• 75%
• 25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Define incomplete dominance and an example.

• When the letters are different

• When the letters are the same

• Neither allele is complete. So a blending of colors occurs

• The process of two alleles both being fully expressed in the phenotype - like spots

Tags

NGSS.HS-LS3-2

What are all the possible gametes combinations for GGTt? (dihybrid)

• GT,Gt,GT,Gt

• GGTt, GgTt, ggTt, TtGG
• GG, TT, tt, GG

• GG, TT, Tt

According to the table, which of the following phenotypes would probably occur from ggbb?

• Green, round peas

• striped fur, blue eyes

• Purple, smooth fur

• Yellow, wrinkled peas

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Who discovered the science of genetics?

• Isaac Newton
• Francis Crick

• Gregor Mendel
• Albert Einstein

Give an example of a phenotype

• An example of a phenotype is the color of a flower, such as red or white.
• The temperature of a room, such as hot or cold
• The taste of a fruit, such as sweet or sour
• The size of a tree, such as tall or short

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the definition of a phenotype

• When the letters are the same

• The letter results inside of the Punnett square

• the physical traits that appear from the Punnett square

• When the letters are different from each other

Tags

NGSS.HS-LS1-1

What is the definition of a genotype

• When the letters are the same

• The letter results inside of the Punnett square

• the physical traits that appear from the Punnett square

• When the letters are different from each other

Homozygous dominant

• HH

• Hh

• hh

• GH

Tags

NGSS.HS-LS4-3

Homozygous recessive

• HH

• Hh

• hh

• GH