1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
BlackZzzverrR [31]
2 years ago
13

Gel electrophoresis is normally set up with the negative electrode at the top of the gel and the positive electrode at the botto

m of the gel. The DNA products are loaded at the top of the gel, and then a current is applied to separate them. However, when preparing to run a gel, you accidentally switched the locations of the negative and positive electrodes such that the positive electrode is at the top and the negative electrode is at the bottom. You still loaded the DNA products at the top of the gel as normal. What result are you most likely to observe if you apply an electric current to this gel setup?
A) Shorter DNA molecules will move up the gel, and longer DNA molecules will move down the gel.
B) All DNA molecules will migrate up the gel toward the positive electrode.
C) Longer DNA molecules will move up the gel, and shorter DNA molecules will move down the gel.
D) All DNA molecules will migrate down the gel toward the negative electrode.
Biology
1 answer:
vredina [299]2 years ago
4 0

Answer:

B) All DNA molecules will migrate up the gel toward the positive electrode.

Explanation:

Because the DNA has a negative charge - regardless the size-, all DNA molecules will migrate towards the positive electrode, at the top of the gel. This is due to the Coulomb's physic law  "force of the interaction between the charges is attractive if the charges have opposite signs".

Instead of migrate down the gel , the DNA will do migrate up the gel (opposite direction).

You might be interested in
Write an equation in slope-intercept form for the line that passes through the given point and is parallel to the given
alexandr402 [8]

Use the slope-intercept form to find the slope.

Tap for fewer steps...

The slope-intercept form is  

y = m x + b  

where  m  is the slope and  b  is the y-intercept.

y = m x + b  

Using the slope-intercept form the slope is  

− 4 . m = − 4

To find an equation that is parallel to  

y = − 4 x + 2

the slopes must be equal. Using the slope of the equation, find the parallel line using the point-slope formula.

( − 2 , 5 ) m = − 4

Using the point-slope form  

y − y 1 = m ( x − x 1 )

plug in  

m = − 4 ,  x 1 = − 2

and  

y 1 = 5 . y − ( 5 ) = ( − 4 ) ( x − ( − 2 ) )

Solve for  

y .

Multiply  

− 1  by  5 . y − 5 = ( − 4 ) ( x − ( − 2 ) )

Simplify  

( − 4 ) ( x − ( − 2 ) ) .

Multiply  

− 1  by  − 2 . y − 5 = − 4 ( x + 2 )

Apply the distributive property.

y − 5 = − 4 x − 4 ⋅ 2

Multiply  − 4  by  2 . y − 5 = − 4 x − 8

Move all terms not containing  

y  to the right side of the equation.

Add  

5

to both sides of the equation.

y = − 4 x − 8 + 5  Add  − 8  and  5 . y = − 4 x − 3

HOPE THIS HELPED!

7 0
2 years ago
Read 2 more answers
2. The diagram shows a sequence of bases in a strand
Gnom [1K]

Answer:

there is no diagram but

ACTTG-TGAAC

TGAAC-ACTTG

so a and b would be complimentary

4 0
2 years ago
Describe key differences between metaphase and anaphase
torisob [31]
in metaphase the chromosomes are lined up on the spindle fibres across the middle of the cell. and during anaphase the chromosome copied are separated and moved to either end of the cell on the spindle fibres. basically the chromosomes are in different positions
8 0
3 years ago
Because of their small size, birds are very light eaters.<br><br> True<br> False
podryga [215]
THE answer is " true "
3 0
3 years ago
According to the ________ definition of organizations, an organization is seen as a means by which primary production factors ar
MrMuchimi

Answer:

According to the **microeconomic** definition of organizations, an organization is seen as a means by which primary production factors are transformed into outputs consumed by the environment. microeconomic macroeconomic sociotechnical behavioral

Explanation:

In microscopic definition of organizations , the primary production factors provided by the environment (labor and capital) are transformed through the firm through the production process into products and services. Thus the words thus used complement one another.

Microeconomics actually deal with the decisions of people on a small scale. So it deals with the way in which the means of production and distribution of goods are organized.

Its analysis explains the behaviour of individuals and organizations in a given economy.

8 0
3 years ago
Other questions:
  • Producers can use energy from the sun to produce food for themselves through a process called...?
    15·1 answer
  • Does peterson's solution to the mutual-exclusion problem shown in fig. 2-24 work when process scheduling is preemptive
    8·1 answer
  • Which action made by the nurse may contaminate the surface of the sterile item?
    6·1 answer
  • The organic matter, or hydrocarbon raw material, is derived primarily from __________.
    15·1 answer
  • Which human action has not lead to significant changes in earth's biomes?
    11·2 answers
  • What is the Jet Stream
    11·2 answers
  • Protists are
    6·1 answer
  • How Many genders Are there?
    9·1 answer
  • Sex chromosomes are:
    7·1 answer
  • Explain how mining can be harmful to the environment
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!