To interpret the above pedigree, there are some pedigree rules that you need to know.

Squares are males, and circles are females.

Horizontal lines connecting shapes in the middle indicate that two individuals have offspring together.

Vertical lines indicate a parent-offspring relationship.

Siblings are connected with a horizontal line *above* the shapes (check out Susie's brother and Susie for an example).

There is some additional information that you need for these cats.

Susie has a pink nose (the dominant condition).

Susie's father also has a pink nose.

Susie's brother has a gray nose (the recessive condition).

Susie and "Susie's 1st partner" had one kitten, and that kitten had a gray nose.

Fred has a pink nose.

Fred's father has a gray nose.

Fred's mother and her parents are all homozygous dominant for pink noses.

Q1: Susie's genotype is:

nn

NN

none of these is correct

Nn

Q2: Susie can produce gametes that are:

N or n

only n

NN or nn

only N

q3: Fred can produce gametes that are:

only nn

only N

only n

N or n

Q4: The chance of Susie and Fred having a kitten that is heterozygous for the trait of nose color is:

25%

100%

50%

0%

Q5: The chance of Susie and Fred having a kitten that has a pink nose is:

75%

100%

50%

25%

Q6:

The chance of Susie and Fred having a kitten that is homozygous (dominant OR recessive) for the trait of nose color is:

50%

25%

0%

100%

Group of answer choices

50%

25%

0%

100%

Q7:

The chance of Susie and Fred having a kitten that is homozygous recessive for the trait of nose color is:

Group of answer choices

25%

50%

100%

0%

Q8:

The chance of Susie and Fred having a kitten with the gray nose phenotype is:

Group of answer choices

25%

100%

75%

50%

Q9:

The phenotype of the cats that are homozygous dominant for the trait of nose color is:

Group of answer choices

pink noses

gray noses

can't tell phenotype

nose color is not genetic

Q10:

The genotype of the cats that are homozygous recessive for the trait of nose color is:

Group of answer choices

NN

Nn

not possible to tell genotype from phenotype in this case

nn

Q11:

The genotype of Susie's father is:

Group of answer choices

not enough information given

Nn

NN

nn

Q12:

The genotype of Susie's brother is:

Group of answer choices

nn

NN

not enough information given to answer

Nn

Q13:

The genotype of Fred's mother is:

Group of answer choices

NN

not enough information given to tell

nn

Nn

Q14:

The genotypes of Fred's grandparents on his father's side are:

Group of answer choices

both heterozygous

both nn

both NN

not enough information given

Q15:

The parent from which Fred's mother inherited a pink nose is:

Group of answer choices

both

neither

dad only

mom only

Q16:

The phenotypes of Fred's grandparents on his mother's side is/are:

Group of answer choices

both gray-nosed

dad pink-nosed and mom gray-nosed

both pink-nosed

mom pink-nosed and dad gray-nosed

Transcribed Image Text:ACTIVITY 8.2: Pedigree Analysis To understand pedigree analysis, there are a few things that are helpful to know. Squares Horizontal lines are chromosomal males and circles are chromosomal females. connecting two individuals in the middle indicate the two individuals have offspring together. Vertical lines indicate a parent-offspring relationship. Siblings are connected with a horizontal line above the shapes - look at Susie and Susie's brother for an example below. There is a helpful Amoeba Sister's video on Canvas posted for you to view as well. After carefully studying generation after generation of cats, a monk living in a High Sierra retreat found the trait of "pink noses" (N) is dominant while the trait for "grey noses" (n) is recessive. Susie was a pink-nosed female cat whose father also showed this trait. Susie's brother, however, had a grey nose. Susie also had two mates in her life. She first mated with a male cat that resulted in one grey-nosed kitten. After that, she mated with Fred, a pink-nosed male cat whose father was grey-nosed, and whose mother was purebred for pink-noses. Use the following pedigree chart to help understand Susie's pedigree and to answer the questions on Canvas for this activity. PEDI fg f10 > - 11 O P f11
Transcribed Image Text:Susie's Father Susie's Brother PEDIGREE CHART TO Susie's Mother Susie's 1st partner Kitten O Grandfather Grandmother Fred's Father Susie Fred Grandfather O Grandmother Fred's Mother ctrl

Question

To interpret the above pedigree, there are some pedigree rules that you need to know.

Squares are males, and circles are females.
Horizontal lines connecting shapes in the middle indicate that two individuals have offspring together.
Vertical lines indicate a parent-offspring relationship.
Siblings are connected with a horizontal line *above* the shapes (check out Susie's brother and Susie for an example).

There is some additional information that you need for these cats.

Susie has a pink nose (the dominant condition).
Susie's father also has a pink nose.
Susie's brother has a gray nose (the recessive condition).
Susie and "Susie's 1st partner" had one kitten, and that kitten had a gray nose.
Fred has a pink nose.
Fred's father has a gray nose.
Fred's mother and her parents are all homozygous dominant for pink noses.

Q1: Susie's genotype is:

nn

NN

none of these is correct

Nn

Q2: Susie can produce gametes that are:

N or n

only n

NN or nn

only N

q3: Fred can produce gametes that are:

only nn

only N

only n

N or n

Q4: The chance of Susie and Fred having a kitten that is heterozygous for the trait of nose color is:

25%

100%

50%

0%

Q5: The chance of Susie and Fred having a kitten that has a pink nose is:

75%

100%

50%

25%

Q6:

The chance of Susie and Fred having a kitten that is homozygous (dominant OR recessive) for the trait of nose color is:

50%

25%

0%

100%

Group of answer choices

50%

25%

0%

100%

Q7:

The chance of Susie and Fred having a kitten that is homozygous recessive for the trait of nose color is:

Group of answer choices

25%

50%

100%

0%

Q8:

The chance of Susie and Fred having a kitten with the gray nose phenotype is:

Group of answer choices

25%

100%

75%

50%

Q9:

The phenotype of the cats that are homozygous dominant for the trait of nose color is:

Group of answer choices

pink noses

gray noses

can't tell phenotype

nose color is not genetic

Q10:

The genotype of the cats that are homozygous recessive for the trait of nose color is:

Group of answer choices

NN

Nn

not possible to tell genotype from phenotype in this case

nn

Q11:

The genotype of Susie's father is:

Group of answer choices

not enough information given

Nn

NN

nn

Q12:

The genotype of Susie's brother is:

Group of answer choices

nn

NN

not enough information given to answer

Nn

Q13:

The genotype of Fred's mother is:

Group of answer choices

NN

not enough information given to tell

nn

Nn

Q14:

The genotypes of Fred's grandparents on his father's side are:

Group of answer choices

both heterozygous

both nn

both NN

not enough information given

Q15:

The parent from which Fred's mother inherited a pink nose is:

Group of answer choices

both

neither

dad only

mom only

Q16:

The phenotypes of Fred's grandparents on his mother's side is/are:

Group of answer choices

both gray-nosed

dad pink-nosed and mom gray-nosed

both pink-nosed

mom pink-nosed and dad gray-nosed

ACTIVITY 8.2: Pedigree Analysis
To understand pedigree analysis, there are a few things that are helpful to know. Squares
Horizontal lines
are chromosomal males and circles are chromosomal females.
connecting two individuals in the middle indicate the two individuals have offspring
together. Vertical lines indicate a parent-offspring relationship. Siblings are connected
with a horizontal line above the shapes - look at Susie and Susie's brother for an example
below. There is a helpful Amoeba Sister's video on Canvas posted for you to view as
well.
After carefully studying generation after generation of cats, a monk living in a High Sierra
retreat found the trait of "pink noses" (N) is dominant while the trait for "grey noses" (n) is
recessive. Susie was a pink-nosed female cat whose father also showed this trait. Susie's
brother, however, had a grey nose. Susie also had two mates in her life. She first mated
with a male cat that resulted in one grey-nosed kitten. After that, she mated with Fred, a
pink-nosed male cat whose father was grey-nosed, and whose mother was purebred for
pink-noses. Use the following pedigree chart to help understand Susie's pedigree and to
answer the questions on Canvas for this activity.
PEDI
fg
f10
>
- 11
O
P
f11

Susie's Father
Susie's Brother
PEDIGREE CHART
TO
Susie's Mother
Susie's
1st partner
Kitten
O
Grandfather Grandmother
Fred's Father
Susie
Fred
Grandfather
O
Grandmother
Fred's Mother
ctrl

Accepted Answer

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