Pedigree Practice

Pedigree Practice

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Multiple Choice

What do we use pedigrees for?

• To look at families
• To make determinations about the offspring
• To track traits in families
• Nothing

Multiple Choice

What does a horizontal line between a square and a circle mean?

• They are siblings

• They are cousins

• They are married ("together")

• They are the children

Multiple Choice

What does a vertical line coming down from a square and circle that are connected by horizontal line indicate?

• They are cousins
• The children
• Aunts and Uncles

Multiple Choice

How many chromosomes are shown in a normal human karyotype?

• 2

• 12

• 25

• 46

Multiple Choice

this individual is...

• male

• female

• not enough information

Multiple Choice

this individual is...

• male

• female

• not enough information

Multiple Choice

AA and Aa always show up as

• dominant

• recessive

Multiple Choice

Look at the Punnett square. If the two parents represented in the Punnett square have four offspring, what does the Punnett square tells you?

• two of the offspring will definitely be heterozygous.

• one of the offspring will definitely show the recessive trait.

• there is a 50% chance for each of the 4 offspring to have the genotype Rr.

• there is a greater chance for the offspring to be RR than rr.

Multiple Choice

Freckles (F) are dominant over nonfreckles. What is the phenotype of individual #3

• Ff

• ff

• freckles

• non-freckles

Multiple Choice

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

Multiple Choice

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

Multiple Choice

Which of the following would be the genotype of a carrier?

• AA

• Aa

• aa

Multiple Choice

What is the mode of inheritance shown here?

• Autosomal Dominant

• Autosomal Recessive

• Sex Linked Recessive

Multiple Choice

How are individuals III-2 and II-4 related?

• Cousins

• Dad and Daughter

• Uncle and Niece

• Grandpa and Granddaughter

Multiple Choice

What is the mode of inheritance shown here?

• Autosomal Recessive

• Autosomal Dominant

• Sex Linked

Multiple Choice

Which gender can be carriers of colorblindness and not have it?

• Just males

• Just females

• Both genders

Multiple Choice

From this pedigree, give the genotype for person III-3

• GG

• Gg

• gg

• G_

Multiple Choice

From this pedigree, give the genotype for person II-1

• GG

• Gg

• gg

• G_

Multiple Choice

In the second generation-how many people have the disease or display the physical trait?

• 2

• 4

• 5

• 6

Multiple Choice

How many people in this whole pedigree have the trait/disease?

• 2

• 3

• 4

• 6

Multiple Choice

How many children did individuals I-1 and I-2 have?

• 2

• 4

• 6

• 8

Multiple Choice

If the P generation had another child, what are the chances that it will have blonde hair?

• 0%

• 25%

• 50%

• 75%

• 100%

Multiple Choice

If this pedigree shows an autosomal recessive disorder, what MUST the genotype of individual II-3 be?

• HH

• Hh

• hh

• None of the above

Multiple Choice

Which of the following combinations of sex chromosomes represent a female?

• XY

• XXY

• XX

Multiple Choice

Which individual in the first generation is a carrier?

• The male
• The female
• individual 1
• None of the above

Multiple Choice

What is the relationship between person I 1 and III 2?

• Father and Son
• Father and Daughter
• Grandfather and Granddaughter
• Uncle and Niece 

Multiple Choice

This pedigree shows the inheritance of colorblindness.

What is the genotype for individual IV-1?

• X^BX^B

• X^bX^b

• X^BY

• X^bY

Multiple Choice

What type of heredity is shown in the pedigree?

• Autosomal Recessive

• Sex-Linked

• Autosomal Dominant

Multiple Choice

If hemophilia is a sex-linked recessive trait, what genotype would individual IV-2 have?

• X^BX^b

• X^bX^b

• X^BY

• X^bY

Multiple Choice

This pedigree shows the inheritance of colorblindness.

What is the genotype for individual III-5?

• X^BX^B

• X^BX^b

• X^BY

• X^bY

Multiple Choice

Color Blindness is a sex linked disease. Therefore, it HAS to affect which pair of chromosomes?

• 21

• 23

• 24

• 1-22