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Gel Electrophoresis

Total questions: 25

Worksheet time: 25mins

Name
Class
Date
1.

Which of the following is the correct definition of natural selection?

a)

The idea that organisms less equipped for their environment tend to survive longer

b)

The idea that organisms more well equipped for their environment tend to survive longer

c)

The idea that organisms more well equipped for their environment tend to not survive

d)

None.

2.
In recent years "SuperBugs" (bacteria that aren't effected by antibiotics) are becoming more and more common. How could natural selection explain this?
a)
Superbugs survive antibiotics and reproduce
b)
Antibiotics cause bacteria to become superbugs
c)
We have always had the same amount of superbugs; modern media just discusses them more.
d)
There is no reliable data on the origin of super bugs.
3.
The study of the early stages of development that is one evidence of evolution is:
a)
Homologous Structures
b)
Embryology
c)
Vestigial Organs
4.
Two organisms that are closely related would have
a)
very similar DNA sequence
b)
exactly the same DNA sequences
c)
no proteins in common
d)
completely different DNA sequence
5.

Lysosome

a)

creates energy (ATP) from food; site of cellular respiration

b)

stores food, water, or wastes with the cell; plant cells have a special vacuole

c)

uses enzymes to digest bacteria, viruses, and old organelles (old cell parts are recycled)

d)

create special structures called spindle fibers that are used in cell division

6.

Vacuole

a)

creates energy (ATP) from food; site of cellular respiration

b)

stores food, water, or wastes with the cell; plant cells have a special vacuole

c)

uses enzymes to digest bacteria, viruses, and old organelles (old cell parts are recycled)

d)

create special structures called spindle fibers that are used in cell division

7.

Mitochondria

a)

creates energy (ATP) from food; site of cellular respiration

b)

stores food, water, or wastes with the cell; plant cells have a special vacuole

c)

uses enzymes to digest bacteria, viruses, and old organelles (old cell parts are recycled)

d)

create special structures called spindle fibers that are used in cell division

8.

Why can't you drink salt water?

a)

It's hypertonic to your cells

b)

It's hypotonic to your cells

c)

It's isotonic to your cells

d)

It's paratonic to your cells

9.

A cell has 80% water 20% solute, the surrounding solution has 60% water and 40% solute. What type of solution is this?

a)

Hypertonic

b)

Isotonic

c)

Hypotonic

d)

Equilibrium

10.

In anaphase of mitosis, chromosomes

a)

form and the nuclear envelope disappears.

b)

are pulled toward opposite ends of the cell.

c)

chromosomes line up along the equator of the cell

d)

chromosomes begin to decondense and the two new nuclei begin to form.

11.
In the S stage of interphase....
a)
The cell grows
b)
The nucleus divides
c)
The cell membrane divides
d)
The DNA is replicated
12.
Put the following actions in order: DNA replicates, cell grows, cell divides, cell prepares for mitosis. 
a)
DNA replicates, cell grows, cell prepares for mitosis, cell divides
b)
cell grows, cell prepares for mitosis, DNA replicates, cell divides
c)
cell grows, DNA replicates, cell prepares for mitosis, cell divides
d)
DNA replicates, cell prepares for mitosis, cell grows, cell divides
13.

Select all stages of interphase?

a)

G1

b)

S

c)

G2

d)

Mitosis

14.

Overall..DNA has a slight _____ charge.

a)

Negative

b)

Positive

15.

Gel Electrophorsis is helpful in separating molecules based on their..

a)

Size

b)

Shape

c)

Charge

d)

Density

16.

Restrictive Enzymes will cut DNA at _________ locations.

a)

Specific

b)

Random

c)

Key

d)

Equal lengthed

17.

Based on the video which pieces will move 'fastest' through the gel towards the positive electrodes?

a)

Shorter Pieces of DNA

b)

Larger Pieces of DNA

c)

Less Dense pieces of DNA

d)

More dense pieces of DNA

18.
Why do the fragments of DNA in gel electrophoresis travel away from the negative electrode?
a)
DNA is negatively charged so attracted to the positive end of the unit
b)
DNA is positively charged to attracted to the negative end of the unit
c)
the agarose gel in negatively charged
d)
the agarose gel is positively charged
19.
Which is the primary purpose of using restriction enzymes in gel electrophoresis?
a)
It allows the strands of DNA to be cut into various lengths for testing
b)
It restricts the number of base pairs that can be tested in a sample
c)
It makes the testing simpler by moving the strands into the gel faster
d)
It charges the DNA strands
20.

Which suspect left the blood stain?

a)

Bob

b)

Sue

c)

John

d)

Lisa

21.

The parents of a new baby believe they brought the wrong child home from the hospital. Gel electrophoresis was performed using DNA samples from the parents and the child. A section of the gel

electrophoresis results is shown below. Which conclusion is valid based on the gel electrophoresis results?

a)

They have the correct child, because her genetic information is identical to that of the father.


b)

They have the wrong child, because her genetic information does not match that of either parent.

c)

They have the correct child, because her genetic information came from both parents.


d)

They have the wrong child, because her genetic information matches only that of the mother.

22.

Which male is the father of the child?

a)

Male 1

b)

Male 2

23.

Which trait should go where C is on the cladogram?

a)

eyes

b)

feet

c)

lips

d)

hat

24.

Which trait should go where A is on the cladogram?

a)

eyes

b)

feet

c)

lips

d)

hat

25.

Match the function to the organelle

a)

Ribosomes

1.

Synthesize Proteins

b)

Lysosomes

2.

Break down and recycle macromolecules

c)

Cell Wall

3.

Shapes, supports, and protects cell