Heredity and Pedigree

Which term correctly describes an individual with a pair of the same alleles for a trait? 

• homologous
• heterozygous
• homozygous
• heterologus

Tags

NGSS.HS-LS3-1

 An individual with two different alleles for a specific trait is said to be _____________.

• homozygous
• heterogenous
• homogenous
• heterozygous

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Of 12 hamsters just born, 9 have brown fur and 3 have white fur. The trait for white fur is considered to be ________.

• recessive
• weak
• strong
• dominant

Tags

NGSS.HS-LS3-1

 Phenotype refers to the _________ of an individual

• genetic makeup
• physical appearance
• recessive alleles
• dominant alleles

Tags

NGSS.HS-LS3-1

 When the genotype consists of a dominant and a recessive allele, the phenotype will be like the ______________ allele.

• dominant
• recessive
• both
• neither

Tags

NGSS.HS-LS3-1

 Which of these would best be described as a phenotype?

• blue eyes
• mutation
• Bb
• Tt

How many females are in this pedigree?

• 3
• 4
• 6
• 7

How many of the males in this pedigree show the trait being studied?

• 2
• 3
• 4
• 6

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

What does a filled in square represent?

• Not affected Female
• Not affected Male
• Affected Male
• Affected Female

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How many generations are shown in this pedigree?

• 1
• 2
• 3
• 4