Genetics REVISION punnett & pedigree

This is a pedigree that follows blue eyes which is a recessive trait. What is the genotype of the father in generation 1?

• Bb

• BB

• bb

• B

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

This is a pedigree that follows blue eyes which is a recessive trait. What is the genotype of child 1 in generation 3?

• BB

• bb

• Bb or bb

• Bb or BB

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

• homologous
• heterozygous
• homozygous
• heterologus

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

• homozygous
• heterogenous
• homogenous
• heterozygous

Tags

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

 A pea plant is heterozygous for height (Tt) and it is crossed with a homozygous short (tt) plant. Use a Punnett square to determine the probability of one of their offspring being short.

• 100%
• 75%%
• 50%
• 25%

Tags

NGSS.HS-LS3-3

 One dog carries homozygous, long-haired traits (SS), and its mate carries homozygous short-haired traits (ss). Use a Punnett square to determine the probability of one of their offspring having long hair.

• 100%
• 75%
• 50%
• 25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

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