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Human Genetics Review

Total questions: 44

Worksheet time: 33mins

Name
Class
Date
1.

What is the thing that shows you all the possible ways that alleles can combine?

a)

Punnett Square

b)

Pedigree

c)

Codon

d)

Genetic Counseling

2.

Hybrids receive...

a)

different alleles from each parent.

b)

the same allele from each parent.

c)

both alleles from one parent.

d)

all choices are correct.

3.

Why don't females get hemophilia very often?

a)

Because men with hemophilia don't often live to reproductive age.

b)

Because hemophilia is a Y-linked trait.

c)

Because women with hemophilia live a long time.

d)

Women must have lots of testosterone to have hemophilia.

4.

Which generation shows evidence for crossing-over?

a)

F2

b)

F1

c)

G

d)

P

5.

True/False - Chromosome Maps depict absolute distances between genes on a chromosome.

a)

False

b)

True

6.

Blood types are controlled by...

a)

multiple alleles.

b)

incomplete dominance.

c)

polygenic inheritance.

d)

sex-linked traits.

7.

How many alleles control blood types?

a)

3

b)

2

c)

4

d)

1

8.

What would be the blood type of a person who inherited an B allele from one parent and an O allele from the other?

a)

type B

b)

type O

c)

type A

d)

type AB

9.

Which of these is a way to assess the risk of passing on a genetic disorder to offspring?

a)

Prenatal Testing

b)

Genetic Counseling

c)

Analysis of a Pedigree

d)

Karyotype

e)

Blood Typing

10.

Which of these represents an organism that has two different alleles for a trait?

a)

heterozygous

b)

homozygous

c)

incomplete dominance

d)

polygenic

11.

This is when there is a third, intermediate form for a trait.

a)

Incomplete dominance

b)

Complete Dominance

c)

Polygenic Inheritance

d)

Pedigree

12.

This is the type of inheritance when more than two alleles control a trait

a)

Multiple Alleles

b)

Genotypic

c)

Dominant

d)

Recessive

13.

This is the physical appearance of an organism.

a)

Phenotype

b)

Genotype

c)

Karyotype

d)

Pedigree

14.

This helps determine the chance that something will occur.

a)

Probability

b)

Allele

c)

Genotype

d)

Phenotype

15.

This is the type of inheritance when a group of gene pairs act together.

a)

Polygenic

b)

Complete

c)

Dominant

d)

Autosomal

16.

This is the genetic makeup of an organism.

a)

Genotype

b)

Phenotype

c)

Pedigree

d)

Karyotype

17.

This is a tool for tracing a trait through a family.

a)

Pedigree

b)

Genetic Therapy

c)

Karyotype

d)

Allele

18.

This is a genetics tool that uses letters to represent dominant and recessive alleles.

a)

Punnett Square

b)

Pedigree

c)

Phenotype

d)

Periodic Table

19.

This is a factor that seems to disappear.

a)

Recessive

b)

Dominant

c)

Codominant

d)

Heterozygote

20.

This is when there are two alleles that are exactly the same.

a)

Homozygous

b)

Heterozygous

c)

Genotype

d)

Phenotype

21.

This is a factor that covers up another factor.

a)

Dominant

b)

Recessive

c)

Homozygous

d)

Mutation

22.

This is the different forms a gene has for a trait.

a)

Alleles

b)

Pedigree

c)

Mutation

d)

Heredity

23.

This is the passing on of traits from parents to offspring.

a)

Heredity

b)

Phenotype

c)

Polygenic

d)

Complex Character

24.

This is the study of heredity.

a)

Genetics

b)

Mutation

c)

Biology

d)

Geology

25.

These things depict the linear sequence of genes on a chromosome, are constructed using crossing-over data from mating experiments, and are practical with species having only a few chromosomes.

a)

Chromosome Maps

b)

Pedigrees

c)

Karyotypes

d)

Genetic Screening

26.

This is a mutation caused by a piece of DNA breaking away from its chromosome and becoming attached to a nonhomologous chromosome.

a)

Translocation

b)

Deletion

c)

Inverson

d)

Nondisjunction

27.

A mutation is...

a)

a change in a gene due to damage or incorrect copying.

b)

the evolution of species due to small changes.

c)

The correction of DNA.

d)

The copying of DNA.

28.

True/False - Mutations are always harmful.

a)

False

b)

True

29.

Silent mutations...

a)

have no effect.

b)

change the amino acid.

c)

create a stop codon.

d)

are harmful.

30.

Which of these is a diagram in which several generations of a family and the occurrence of certain genetic characteristics are shown?

a)

Pedigree

b)

Karyotype

c)

Codon

d)

Punnett Square

31.

A family record that indicates the occurrence of a trait is a...

a)

pedigree.

b)

chromosome map.

c)

genetic therapy.

d)

cardiogram.

32.

Blood type is controlled by...

a)

multiple alleles.

b)

a specific allele.

c)

dozens of alleles.

d)

2 codons.

33.

This thing uses a family pedigree, assists parents in deciding whether or not to have children, and helps identify parents at risk for having children with genetic defects.

a)

Genetic Counseling

b)

Genetic Therapy

c)

Heredity

d)

Prenatal Testing

34.

If a trait is inherited from a chromosome that is not a sex cell, then it is considered...

a)

autosomal.

b)

recessive.

c)

sex-linked.

d)

complex character.

35.

Autosomal genetic diseases are found....

a)

in equal proportions in males and females.

b)

more in males than females.

c)

more in females than females.

d)

more in children than adults.

36.

Sex-linked genetic diseases are found....

a)

in equal proportions in males and females.

b)

more in males than females.

c)

more in females than females.

d)

more in children than adults.

37.

The parents of an offspring both carry the recessive allele for cystic fibrosis, what is the chance that their child will develop the disease?

a)

1 in 4

b)

1 in 2

c)

1 in 3

d)

3 in 5

38.

True/False - Sex-linked characteristics happen less often in females.

a)

True

b)

False

39.

Which of these are a sex-linked trait?

a)

male-pattern baldness

b)

color blindness

c)

hemophilia

d)

all choices are correct

40.

This type of disease caused by a genetic mutation is caused by nondisjunction, which causes the person to have an extra chromosome.

a)

Down Syndrome

b)

Huntington's Disease

c)

Cystic Fibrosis

d)

Schizophrenia

41.

The father determines...

a)

the sex of the offspring.

b)

how attractive the offspring is.

c)

the height of the offspring.

d)

the attitude of the offspring during teenage years.

42.

This type of mutation causes a gamete to receive too many or too few copies of a chromosome.

a)

Nondisjunction

b)

Silent

c)

Frameshift

d)

Translocation

43.

Hybrids are...

a)

organisms with two different types of alleles.

b)

homozygous recessive.

c)

homozygous dominant.

d)

codons.

44.

Cystic Fibrosis is a...

a)

recessive genetic disorder.

b)

dominant genetic disorder.

c)

sex-linked disorder.

d)

multiple allele disorder.

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