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
Galina-37 [17]
3 years ago
10

In DNA fingerprinting explain how DNA moves through the gel

Biology
1 answer:
Zielflug [23.3K]3 years ago
3 0

Answer:

B. The smaller DNA pieces travel farthest towards the positive end of the box

Explanation:

Gel-electrophoresis technique is a technique which is used to separate the fragments of DNA based on their size. The technique is employed in the DNA fingerprint analysis.

The DNA samples are loaded on one side of the gel and when an electric current is applied, the DNA moves from the wells towards the electrodes.

The DNA is a negatively charged molecule which travels through pores in the gel and reaches towards the electrode with positive charge. The smaller the size of the DNA fragment, the faster it moves.

Thus, Option-B is correct.

You might be interested in
A culture medium on which only gram-positive organisms grow and a yellow halo surrounds staphylococcus aureus colonies is called
ELEN [110]
I believe the most appropriate is a selective medium and differential medium. Selective medium types are formulated to support the growth of one group of organism, but inhibit the growth of another. Blood agar is a differential medium that distinguishes bacterial species by their ability to break down the red blood cells included in the media. Blood agar is often used to distinguish between the different species of pathogenic streptococcus bacteria.
4 0
3 years ago
What is a key part of darwins idea of natural selection
forsale [732]
<span>D. More individuals are born than can live on available resources.hope this helps!
</span>
6 0
3 years ago
Please answer all i need help quick
svet-max [94.6K]

Answer:

1. B

2. B

3. A

4. B

Explanation:

1. Species is smaller than kingdom, and domain isn't a group

2. Its kinda obvious

3. Not too sure on this one, but i think a is right

4. Pro means 'before nucleus', therefore it has no nucleus

3 0
3 years ago
Describing meiosis 1
Colt1911 [192]

Explanation:

Prophase - <em>Pairs of chromosomes separate and move to opposite ends of the cell.</em>

Metaphase <em>-Each pair of chromosomes lines up along the middle of cell.</em>

Anaphase <em>- Each chromosome moves towards, and pairs up with its mate.</em>

Telophase <em>- The nuclear membrane forms around the chromosomes. </em>

<em />

<u><em>Hope this helps!</em></u>

<u><em>Please mark brainliest! </em></u>

3 0
3 years ago
How are hypotheses and theories similar? How do they differ?
sergij07 [2.7K]
<h2>Similarities </h2>

1) both are testable

2) both are Falsifiable

<h2>Hypothesis </h2>

1) Is based on Suggestion, possibility, projection or prediction, but the result is uncertain.

2) the data is Usually based on very limited data

<h2>Theories </h2>

1) is based on Evidence, verification, repeated testing, wide scientific consensus

2) the data is based on a very wide set of data tested under various circumstances.


                 

4 0
4 years ago
Other questions:
  • True or False. Sound first enters the ear, then passes through the eardrum into the ear, and then passes to the ear where the so
    7·1 answer
  • In which type of muscular contraction does the muscle change length either shortening or lengthening?
    5·1 answer
  • What biological macromolecule is made up of monomers like the one shown below?
    13·2 answers
  • Could someone help? :)
    11·1 answer
  • Which element cycles through both photosynthesis and respiration
    8·1 answer
  • Discuss the functions and sources of antioxidant micronutrients, phytochemicals, and antioxidant minerals.
    10·1 answer
  • All systems should aim to achieve 99.999-percent uptime. <br> a. True <br> b. False
    9·1 answer
  • 12. Removing an organism from an ecosystem will have which of the following affects? Select all that apply.
    7·1 answer
  • Good morning.<br>what is photosynthesis? ​
    5·1 answer
  • Consider the following prediction. Prediction: If tomato plants are harmed by NoGro herbicide, then an increase in the concentra
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!