Heredity Unit Test

How many alleles (letters) does a child get from each parent for each trait?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-LS3-1

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

• recessive
• dominant
• lower case letter
• both 

AA and Aa always show up as

• dominant
• recessive

Tags

NGSS.HS-LS3-1

aa always shows up as

• dominant
• recessive

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following genotypes is heterozygous?

• Bb
• BB
• bb
• B

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-LS3-1

NGSS.HS-LS3-3

incomplete dominance means that there traits are,,,

• expressed equally
• dominant
• recessive
• blended

polygenic means that _________ control a characteristic

• many genes
• single genes
• 3 genes
• no genes

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

an example of polygenic inheritance is...

• height
• hitch hikers thumb
• blood types

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

What do you call the non-Mendelian inheritance pattern where both traits are dominant and both appear in the organism with heterozygous genotype?

• Codominance
• Incomplete dominance
• Polygenic traits

Tags

NGSS.HS-LS3-2