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Unit 3 Exam Review

Total questions: 60

Worksheet time: 2hrs 36mins

Name
Class
Date
1.

The traits of an organism are passed to its offspring on small coded strands of DNA material called _________.

a)

heredity

b)

genes

c)

mitosis

d)

recessive traits

2.

Which of the following describes an inherited trait?

a)

Baby bears figure out how to climb trees quickly

b)

Bears learn where the best berries grow

c)

The bear is wet because he's been catching salmon.

d)

Bears have thick, shaggy fur

3.

Choose all that apply.

​

​Cells reproduce by splitting in half, a process called cell division. What are the three reasons that the cells in our body need to go through Mitosis?

a)

so we can grow

b)

to get stronger

c)

to heal wounds

d)

so we can look like our parents

e)

to replace old, worn out, and dead cells

4.

When a cell goes through Mitosis, the DNA makes an ____________ copy of itself.

a)

similar

b)

different

c)

identical

5.

Where are genes found?

a)

cytoplasm

b)

ribosomes

c)

DNA

d)

only some cells

6.

________________ is the passing of traits from parents to offspring.

a)

Heredity

b)

Cloning

c)

Deoxyribonucleic Acid, or DNA

7.

Which is an example of an inherited characteristic?

a)

dyed pink hair

b)

brown eyes

c)

red lips from lipstick

d)

pierced ears

8.

Select the correct statement.

a)

Your DNA is the exact same as your siblings.

b)

Your DNA is the exact same as your mom.

c)

Your DNA is unique to you.

d)

You DNA is the exact same as your dad.

9.
In pea plants, the tall allele is dominant to the short allele. What key would demonstrate this?
a)
Tall = T
Short = S
b)
Tall = T
Short = t
c)
Tall = t
Short = T
d)
Tall = TT
Short = tt
10.
A heterozygous long-tusked elephant is crossed with a homozygous recessive short-tusked elephant. What is the probability of the offspring having short tusks?
a)
0%
b)
25%
c)
50%
d)
75%
11.
Identify the homozygous dominant genotype:
a)
FF
b)
Ff
c)
ff
12.

There are two types of Genetic Material RNA & DNA

a)

True

b)

False

13.

How many genes does the human have?

a)

45

b)

23

c)

46

14.

Adenine, Thymine, Cytosine, & Guanine are the four base pairs of DNA

a)

True

b)

False

15.

The dominant trait is usually represented by a Capital Letter

a)

True

b)

False

16.

This scientist is responsible for genetics and is often called the Father of Genetics

a)

Albert Einstien

b)

Mr. Scott

c)

Gregor Mendel

d)

Robert Brown

17.

DNA is the carrier of what

a)

Genetic Information

b)

Disposable Materials

c)

Ribosomes

18.

The functions of DNA and RNA are

1) Vital for inheritance

2) coding for protiens

holds the genetic blueprint for life and instructions for organisms development and reproduction.

a)

True

b)

False

19.

RNA and DNA have the same four base pairs

a)

False

b)

True

20.

This is the process of DNA replicating itself so next cell will get an exact copy and complete set of DNA.

a)

replication

b)

transcription

c)

elongation

21.

The phenotype is how an organism?

a)

looks

b)

acts

c)

behaves

d)

its genes

22.

Skin color, eye color, hair type, and foot size are some similarities that you and your siblings may have

a)

True

b)

False

23.

If two brown haired parents have a blonde child. Did one of the parents have a recessive trait for brown.

a)

Yes

b)

No

24.
Which of these lists presents the stages of the cell cycle in the correct order?
a)
interphase, mitosis, cytokinesis
b)
cytokinesis, mitosis, interphase
c)
mitosis, interphase, cytokinesis
d)
interphase, cytokinesis, mitosis
25.
Which of these phases of mitosis take place first?
a)
anaphase
b)
telophase
c)
prophase
d)
metaphase
26.
During interphase, the DNA is in the form of
a)
chromatin
b)
chromosomes
c)
chromatids
d)
centromeres
27.
A process where one cell forms two identical daughter cells is called...
a)
cell cycle
b)
cell division (mitosis)
c)
interphase
d)
cytokinesis
28.
The cell cycle is ______________.
a)
the process of cells circling throughout the body
b)
the process of splitting the organelles
c)
a process where one cell gets energy
d)
the sequence of stages of growth and division that a cell undergoes
29.
During interphase the cell ___________.
a)
divides into two cells
b)
divides its nucleus
c)
replicates its DNA
d)
replicates the organelles within the cell
30.

This is a types of inheritance

a)

Incomplete Dominace

b)

Codominance

c)

Polygenic Inheritance

d)

All of the above

31.

Which are the Rules of Genetic Information

a)

Genetic Material must be able to store information that pertains to the development and metabolic activities of the cell or organism

b)

Stable so that it can be replicated with high fidelty during cell division and be transmitted from generation to generation

c)

Able to undergo rare changes called mutations that provide genetic variability required for evolution to occur

d)

Genetic Material must be able to divide during mitosis

32.

This % is our DNA is junk

a)

97

b)

100

c)

60

d)

78

33.

Who is the double helix synonymous with?

a)

a. J. Watson

b)

b. F. Crick

c)

c. R. Franklin

d)

d. a and b

34.

What is the most famous photo of DNA?

a)

Photo 51

b)

Photo 22

c)

Photo 48

d)

Photo 35

35.

the building block of DNA is___?

a)

amino acid

b)

nucleotide

c)

glycerol group

d)

fatty acids

36.

a nucleotide is made of__________?

a)

phosphate group, nucleic acid, amino acid

b)

sugar, amino acid, fatty acid

c)

amino acid, fatty acid, casserole

d)

phosphate group, nitrogen base, sugar

37.

The nitrogen bases in DNA are?

a)

Adenine, codeine, nicotine, glycogen

b)

guanine, adenine, uracil, glycogen

c)

cytosine, uracil, codeine, agenine

d)

Adenine, guanine, cytosine, thymine

38.

What is Chargaff's Rule of base pairing in DNA?

a)

A-G, C-T

b)

G-T, C-A

c)

G-C, T-A

d)

A-C, G-C

39.

The DNA is called the double helix because___?

a)

it's two strands twist

b)

it's two strands unwind

c)

it's tow strands coil up

d)

it's two strands cross

40.

The type of sugar in DNA is ___________ sugar

a)

Ribose

b)

Fructose

c)

Maltose

d)

Deoxyribose

41.

Interphase is what % of cell division

a)

90%

b)

10%

c)

50%

d)

60%

42.

The human body has ______________ of cells

a)

thousands

b)

millions

c)

trillions

43.

In Metaphase The chromosomes are connected to spindle fibers.The chromosomes are arranged across the middle of the cell.

a)

True

b)

False

44.

Rosalind Franklin discovered a way to separate DNA into fibers until they resembled a crystalized structure. Using X-Ray diffraction she began to take pictures of the structure. She concluded that DNA was a double helix shape with a phosphate backbone and paired bases on the outside.

a)

True

b)

False

45.
How does RNA differ from DNA?
a)
RNA contains uracil and deoxyribose
b)
RNA contains ribose and thymine
c)
RNA contains uracil and ribose
d)
RNA contains adenine and ribose
46.
How would the DNA sequence GCTATA be transcribed to mRNA?
a)
GCUAUA
b)
CGATAT
c)
CGAUAU
d)
GCUTUT
47.
In eukaryotes, functional messenger RNA molecules are made from
a)
exons spliced together after introns are removed
b)
introns spliced together after eons are removed
c)
exons spliced together with introns
d)
long pieces of RNA shortened by the Dicer enzyme
48.
The process by which the genetic code of DNA is copied into a strand of RNA is called
a)
translation
b)
transcription
c)
transformation
d)
replication
49.
In messenger RNA, each codon specifies a particular
a)
nucleotide
b)
enzyme
c)
amino acid
d)
promoter
50.
Changes is DNA sequences that affect genetic information are known as
a)
replications
b)
mutations
c)
transformations
d)
translations
51.
A single-base mutation in a messenger RNA molecule could transcribe the DNA sequence CAGTAT into
a)
GTCATA
b)
GUCAUA
c)
GTCUTU
d)
GUAAUA
52.
Who did James Watson co-discover the double-helix structure of DNA with?
a)
Francis Crick
b)
Rosalind Franklin
c)
Charles Darwin
d)
Albert Einstein
53.
What was the name of the English chemist that Watson and Crick based their initial research off of?
a)
Alfred Nobel
b)
Robert Boyle
c)
John Dalton
d)
Rosalind Franklin
54.
What was Watson's greatest accomplishment?
a)
Discovery of DNA structure & the Nobel Prize
b)
Being a zoology professor
c)
Working with Francis Crick
d)
Discovering the microscope
55.
How much did James Watson auction off his Nobel Prize for?
a)
$5,000
b)
$1.7 million
c)
$150,000
d)
$4.1 million
56.

Which of the following answers best describes Franklin's scientific contributions to date?

a)

overrated

b)

underplayed

c)

overstated

d)

vital

57.

How many helicoidal strands make up DNA?

a)

2

b)

3

c)

4

d)

5

58.

What did people believe Franklin's research did regarding Watson and Crick's discovery?

a)

inspire

b)

breakthrough

c)

confirm

d)

ignore

59.

How might Franklin still win the Nobel Prize if current rules change?

a)

structured

b)

recognized

c)

regardless

d)

posthumously

60.

What areas did Franklin's work help revolutionize?

a)

a. biology

b)

b. medicine

c)

c. agriculture

d)

d. a, b and c

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