Sex linked pedigree

Presentation

•

Biology

•

9th Grade

•

Hard

•

NGSS

HS-LS3-1, HS-LS3-2

Standards-aligned

Mia Scardina

Used 21+ times

FREE Resource

5 Slides • 15 Questions

Sex linked pedigree

By Mia Scardina

Determining type of trait

Dominant

- Does not skip generations

- Each affected individual must have at least 1 affected parent.

- Skips generations

- Offspring can have the disorder even if their parents are both unaffected.

- arents are heterozygous.

Recessive

Multiple Choice

What is the genotype of person I-1?

Multiple Choice

What type of trait is Huntington's disease?

Dominant

Recessive

Multiple Choice

What is the genotype of person II-4?

Determining type of trait

Autosomal

On regular chromosome
Affects males and females equally.

Gene is located on sex chromosome ( X or Y )
Affects males more
- Males only have 1 X (so the trait does not need to be dominant to show)
- Only males have a Y chromosome

Sex linked (recessive)

Multiple Choice

What type of trait is shown in this pedigree?

dominant

recessive

Examples of Sex linked Recessive traits

Hemophilia

Color blindness

Male pattern baldness

Multiple Choice

What type of heredity is shown in the pedigree?

Sex-Linked Recessive

Autosomal Dominant

Autosomal Recessive

Multiple Choice

The pedigree above is an example of:

Autosomal dominant

Autosomal recessive

Sex linked recessive

Multiple Choice

What type of trait does this pedigree show?

Autosomal Dominant

Autosomal Recessive

Sex linked Recessive

Multiple Choice

What type of trait does this pedigree show?

Autosomal dominant

Autosomal recessive

sex linked recessive

Multiple Choice

What is the mode of inheritance shown here?

Sex Linked Recessive

Autosomal Dominant

Autosomal Recessive

Multiple Choice

What type of heredity is shown in the pedigree?

Autosomal Dominant

Autosomal Recessive

Sex linked Recessive

Multiple Choice

Why do all girls of a male who has the dominant X-linked trait also have the trait?

because they get both X’s from their Dad.

because the dad gives them the Y.

because they get one X from their mom which always has the dominant trait.

because they get one X from their dad which has the dominant trait.

Sex linked Punnett Square

Multiple Choice

Hemophilia is a recessive sex-linked trait. If H = normal & h = has hemophilia, which genotype represents a male with hemophilia.

X^HY

X^HX^h

X^hX^h

X^hY

Multiple Select

Assuming a trait is X-LINKED RECESSIVE, what are the genotypes of an UNAFFECTED person? (select all that apply)

X^AY

X^aY

X^AX^A

X^AX^a

X^aX^a

Multiple Choice

What would the genotype be of a colorblind male?

X^NY

X^NYⁿ

XⁿY

XⁿYⁿ

Multiple Choice

Hemophilia is a recessive x-linked disorder.
Which genotype represents a female who is a carrier for hemophilia?

X^HX^h

X^hX^h

X^HX^H

X^hY

Sex linked pedigree

By Mia Scardina

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