Genetics Review for Biology EOC

Which is Heterozygous?

• Tt

• BB

• ff

• Dominant

Which is homozygeous?

• Tt

• BB

• Ff

• Blue

What are the chances that the offspring will have homozygous recessive traits?

• 1 in 4

• 3 out of 4

• 75%

• 50%

Tags

NGSS.HS-LS3-3

What are the chances of heterozygous genotypes in offspring?

• 50%

• 25%

• 1 in 4

• 75%

Tags

NGSS.HS-LS3-3

What allele combination should go in the missing box?

• AA
• Aa
• aa
• none of these

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-1

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

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

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-1

In rabbits, black fur (B) is dominant over brown fur (b). If a rabbit has brown fur, what can you conclude about its genotype?

• It is BB.
• It is Bb
• It is brown
• It is bb.

Tags

NGSS.HS-LS3-1

What is the phenotype of the offspring? (A-Brown hair; a-blond hair) 

• 50 % Brown Hair and 50% Blond Hair 
• 25 % Brown Hair and 75% Blond Hair 
• 75 % Brown Hair and 25% Blond Hair 
• 0% Brown Hair and 100% Blond Hair 

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-1

NGSS.HS-LS3-3

What is a phenotype

• The genetic make up (code)
• The physical trait

Which of the following genotypes is homozygous dominant?

• A
• Aa
• AA
• aa