Pedigree Genetics

Dominant alleles are represented by a:

• Male gene

• lowercase letter

• recessive trait

• capital letter

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

• homologous

• heterozygous

• homozygous

• heterologus

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

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

• homozygous

• heterogenous

• homogenous

• heterozygous

Sam and Madeline are having another baby. Which statement is true?

• The baby will inherit the trait.

• The baby will be a carrier for the trait.

• The baby will not inherit or carry the trait.

• None of these are correct.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

This pedigree shows how left handedness has been passed. Can Mike and Molly have a left handed child?

• No, their child can't be left handed.

• There is not enough information to tell.

• Yes, they can have a left handed child.

• They can have a left or right handed child.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which statement about this Punnett square is NOT true?

• parent is heterozygous, the other is homozygous.

• The offspring have a 50% chance of being homozygous.

• The offspring have a 50% chance of having blue eyes.

• 50% of the offspring be homozygous for brown eyes.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

How many female carriers are in this pedigree?

• 2

• 5

• 3

• 4

Tags

NGSS.HS-LS3-1

Which of the following shows how a trait is passed through multiple generations of a family?

• Family Square

• Genetic Chart

• Punnett Square

• Pedigree Chart

What does a fully colored in circle or square on a pedigree represent?

• Someone who carries a gene for the trait.

• Someone who has the trait.

• Someone who has no genes for the trait.

• Someone who has reproduced.