Free Printable Genetics Review

Free Printable Worksheets

Worksheets

Genetics Review

Total questions: 68

Worksheet time: 1hrs 8mins

Name

Class

Date

1.

Is this trait (the shaded individuals) dominant or recessive?

a)

dominant

b)

recessive

2.

In the second generation-how many people are carriers of the trait?

a)

2

b)

3

c)

5

d)

6

3.

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

a)

2

b)

3

c)

4

d)

6

4.

In this pedigree, which gender can be carriers of colorblindness and not have it?

a)

Just males

b)

Just females

c)

Both genders

5.

Give the genotype for person II-1, for this autosomal trait.

a)

GG

b)

Gg

c)

gg

d)

we cannot be 100% sure of the genotype

6.

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

a)

HH

b)

Hh

c)

hh

d)

None of the above

7.

In this pedigree, the shading represents people in the family with dark hair while the unshaded represents blondes. Is dark hair controlled by a dominant or recessive allele?

a)

Dominant

b)

Recessive

8.

Huntington's Disease is a dominant trait.

What is the correct genotype for individual I-2?

a)

HH

b)

Hh

c)

hh

d)

H?

9.

What is the mode of inheritance shown here?

a)

Autosomal Dominant

b)

Autosomal Recessive

c)

Sex Linked Recessive

10.

What is the mode of inheritance shown here?

a)

Sex Linked

b)

Autosomal Dominant

c)

Autosomal Recessive

11.

What is the mode of inheritance shown here?

a)

Autosomal Recessive

b)

Sex Linked

c)

Autosomal Dominant

12.

What is the mode of inheritance shown here?

a)

Autosomal Recessive

b)

Autosomal Dominant

c)

Sex Linked

13.

What is the mode of inheritance shown here?

a)

Autosomal Dominant

b)

Autosomal Recessive

c)

Sex Linked

14.

What is the mode of inheritance shown here?

a)

Autosomal Dominant

b)

Sex Linked

c)

Autosomal Recessive

15.

What is the mode of inheritance shown here?

a)

Autosomal Recessive

b)

Autosomal Dominant

c)

Sex Linked

16.

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

a)

Ff

b)

ff

c)

freckles

d)

nonfreckles

17.

The genotype of the affected son and daughter at the bottom of this pedigree...

a)

homozygous dominant

b)

homozygous recessive

c)

heterozygous

d)

Can't tell

18.

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

a)

HH

b)

Hh

c)

hh

d)

None of the above

19.

What type of heredity is shown in the pedigree?

a)

Autosomal Recessive

b)

Sex-Linked

c)

Autosomal Dominant

20.

Any change in the sequence of DNA is...

a)

transgenic shift

b)

Single Genotype

c)

Monohybrid Trait

d)

Mutation

21.

What do gene mutations change?

a)

DNA

b)

RNA

c)

Proteins

d)

Lipids

22.

A rabbit that has short deformed legs and cannot jump or run fast would have a____

a)

Harmful mutation

b)

Beneficial mutation

c)

Neutral mutation

d)

normal life

23.

Are all mutations bad?

a)

Yes

b)

No

24.

Are mutations random?

a)

True

b)

False

25.

Mutation always have a HUGE effect on our phenotype.

a)

True

b)

False

26.

Would a mutation in the DNA of a skin cell be passed on to an organism's offspring?

a)

Yes, because any change to the DNA is passed on to the offspring

b)

Maybe. Sex cells only use half of the body's genetic code. It might get the copy of a gene that wasn't mutated.

c)

No. Only mutations that occur in the sex cells that are passed on to the offspring

d)

Without knowing the animal, it would be hard to tell whether or not the mutation would be passed on.

27.

Mitosis starts with one cell and ends with...

a)

one cell

b)

two cells

c)

three cells

d)

four cells

28.

What is cell differentiation?

a)

Process by which cells produce more cells

b)

Process by which cells become specialized

c)

Process by which cells become unspecialized

d)

Process by which cells die

29.

Stem cells are

a)

cells that grow uncontrollably

b)

undifferentiated and can be any type of cell

c)

never go through cell division

d)

only found in embryos

30.

Name the cellular process responsible for repair, growth, and development in living organisms.

a)

meiosis

b)

mitosis

c)

transcription

d)

translation

31.

DNA replication is important for mitosis because...

a)

it results in a variety of traits amongst the same type of cells

b)

it ensures more genetic material in the strongest cells

c)

it ensures both cells will have identical, correct genetic information

d)

it creates variety amongst cells

32.

What is it called when a sperm and egg meet?

a)

meiosis

b)

fertilization

c)

cell division

d)

mitosis

33.

Which process and type of resulting cells are represented?

a)

mitosis, gametes

b)

mitosis, body cells

c)

meiosis, gametes

d)

meiosis, body cells

34.

A male shark has 40 chromosomes in each of its sex cells. How many would be present in its body cells?

a)

20

b)

40

c)

80

d)

160

35.

Aa

a)

Genotype

b)

Phenotype

36.

aa

a)

Genotype

b)

Phenotype

37.

Blue eyes

a)

Genotype

b)

Phenotype

38.

Having two different colored eyes

a)

Genotype

b)

Phenotype

39.

Colorblind

a)

Genotype

b)

Phenotype

40.

The two types of alleles are (select two)

a)

dominant

b)

doughnut

c)

expressive

d)

recessive

41.

Which of the following is heterozygous

a)

FF

b)

tt

c)

Gg

d)

RR

42.

Which of the following is homozygous recessive?

a)

rr

b)

AA

c)

TT

d)

Ff

43.

Which of the following is homozygous dominant?

a)

Jj

b)

Rr

c)

MM

d)

ee

44.

The physical appearance of a trait is known as the-

a)

genotype

b)

phenotype

c)

characteristics

d)

intelligence

45.

How many letters does a genotype contain?

a)

1

b)

2

c)

3

d)

4

46.

What can be passed on through genetics?

a)

Acquired traits

b)

Inherited traits

c)

Taste in music

d)

Cooking ability

47.

What is an allele?

a)

A slippery, long animal that lives in the water

b)

a version of a trait

c)

a kind of cell that has DNA

d)

If I told you the answer, how are you ever going to learn?

48.

Which of the following are PHENOTYPES?

a)

red hair

b)

Gg

c)

seven toes

d)

SS

e)

cc

49.

What is the purpose of Mitosis?

a)

Growth of an organism and Repair of damaged tissue

b)

To help the body get rid of extra cells

c)

To increase the amount of classwork you have to do

d)

To get rid of the nucleus

50.

Meiosis is the _____.

a)

division of sex cells

b)

division of body cells

51.

Which is used to repair or grow cell?

a)

mitosis

b)

meiosis

c)

replication

d)

transcription

52.

Where does Mitosis take place?

a)

where growth and repair are happening

b)

in your hair cells only

c)

in your blood cells only

53.

It is the process of dividing the DNA of a cell into two new nuclei.

a)

mitosis

b)

meiosis

c)

cytokinesis

d)

cell division

54.

In mitosis, the two resulting cells are

a)

different from the starting cell and identical to each other.

b)

different from the starting cell and different from each other.

c)

identical to the starting cell and different from each other.

d)

identical to the starting cell and identical to each other.

55.

What is the likelihood that the offspring will be green (G)?

a)

25%

b)

50%

c)

75%

d)

100%

56.

Dominant alleles are represented by a:

a)

capital letter

b)

lowercase letter

57.

What allele combination should go in the missing box?

a)

AA

b)

Aa

c)

aa

d)

none of these

58.

Each one of the boxes on the Punnett Square represents what percentage?

a)

25%

b)

1%

c)

10%

d)

0%

59.

AA and Aa will both show up as ___________________ traits.

a)

dominant

b)

recessive

60.

Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG

a)

ATG TGA CAG

b)

TAC ACT GTC

c)

GTA AGT GAC

d)

CAT TCA CTG

61.

Guanine bonds with ______________.

a)

Adenine

b)

Guanine

c)

Cytosine

d)

Thymine

62.

Adenine bonds with ______________.

a)

Guanine

b)

Thymine

c)

Cytosine

d)

Adenine

63.

What is the correct complimentary strand for the following DNA?ATCGAG

a)

TACGAG

b)

ATCGAG

c)

TAGCTG

d)

TAGCTC

64.

Which of the following statements is true?

a)

DNA is single-stranded

b)

RNA is single-stranded

c)

DNA contains uracil

d)

RNA contains deoxyribose

65.

What is the difference between DNA and RNA in terms of bases?

a)

RNA contains uracil in place of thymine

b)

RNA contains uracil in place of adenine

c)

RNA contains uracil in place of guanine

d)

RNA contains uracil in place of cytosine

66.

During protein synthesis, an RNA strand is transcribed from one strand of DNA (GCG TTA CCT) What is the complementary RNA strand?

a)

CGC UUT CCT

b)

CGC AAU GGA

c)

GCG UUA CCU

d)

CGC AAT GGA

67.

Select which nitrogenous bases can be found in RNA. (Select all that apply)

a)

Adenine

b)

Thymine

c)

Uracil

d)

Cytosine

e)

Guanine

68.

Transcribe the following DNA sequence to the complementary mRNA sequence.

TAC CGG CTG

a)

AUG GCC GAC

b)

AUG GCC GAG

c)

AUG CGG GAC

d)

GUA GCC GAC

100 %

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