What do half colored symbols represent?

The individual expresses the trait.

The individual has both recessive alleles.

The individual has both dominant alleles.

Examine the pedigree. The allele for the presence of a widow’s peak is dominant. Therefore, we can tell from the chart that in the couple labeled 2:

the male is heterozygous and the female is heterozygous.

the male is heterozygous and the female is homozygous.

the male is homozygous and the female is heterozygous.

the male is homozygous and the female is homozygous.

Which statement is NOT true about Karyotypes

Having missing or extra chromosomes does not indicate a disorder

Chromosomes (pairs 1-22) are arranged by size

Sex chromosomes are found at the end

A normal karyotype has 46 chromosomes or 23 pairs

Colorblindness is more common in males than in females because

the allele for colorblindness is recessive and located on the X chromosome.

fathers pass the allele for colorblindness to their sons only.

the allele for colorblindness is located on the Y chromosome.

males who are colorblind have two copies of the allele for colorblindness.

Based on the Karyotype shown, at which chromosome pair can we identify a genetic disorder?

Disorder of the sex chromosomes

There are no chromosomal disorders

Codominance is when...

Both traits are shown when heterozygous

traits blend together when heterozygous

There is one true dominant and one true recessive allele

Examine the pedigree. The allele for the presence of a widow’s peak is dominant. Therefore, we can tell from the chart that in the couple labeled 2:

the male is heterozygous and the female is heterozygous.

the male is heterozygous and the female is homozygous.

the male is homozygous and the female is heterozygous.

the male is homozygous and the female is homozygous.

What do we use pedigrees for?

To make determinations about the offspring

Why do all the daughters in Generation II carry the colorblind gene?

Because dad passed on the X chromosome.

Because mom passed on the gene.

Because their brother gave it to them.

What do half colored symbols represent?

The individual expresses the trait.

The individual has both recessive alleles.

The individual has both dominant alleles.

pedigree / karyotype quiz

Quiz

•

Biology

•

10th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-LS3-1, HS-LS3-2, HS-LS3-3

Standards-aligned

Used 86+ times

FREE Resource

Student preview

46 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

How many females are in this pedigree?

3

4

6

7

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which individual in the first generation is a carrier?

The male

The female

individual 1

None of the above

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many kids did the mother and father from the first generation have?

2

4

5

6

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many boys did the mother and father from the first generation have?

2

4

5

6

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

How many people in the pedigree are carriers for the disorder?

6

8

2

9

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Looking at this pedigree, how many family members have the disease?

4

7

All

None

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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pedigree / karyotype quiz

46 questions

How many females are in this pedigree?

How many of the males in this pedigree show the trait being studied?

Which individual in the first generation is a carrier?

How many kids did the mother and father from the first generation have?

How many boys did the mother and father from the first generation have?

How many people in the pedigree are carriers for the disorder?

Looking at this pedigree, how many family members have the disease?

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

What do half colored symbols represent?

In a pedigree, what shape represents a male?

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