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
Alexxx [7]
3 years ago
7

A certain restriction enzyme digest results in DNA fragments of the following sizes: 4,000 bp, 2,500 bp, 2,000 bp, and 400 bp. S

ketch the resulting separation by electrophoresis. Show starting point, positive and negative electrodes, and the resulting position of the DNA bands. ( this will all be in one column or well)

Biology
1 answer:
Paladinen [302]3 years ago
8 0

Answer:

Smaller the size of the DNA fragment, farther it moves during electrophoresis. The sketch of the position of the fragments has been drawn in the figure below.

Explanation:

As we know DNA is a negatively charged molecule. So during electrophoresis the fragments move towards the positive electrode because opposite charges attract each other.

Different fragment move different distances according to their size during the electrophoresis. Smallest segment travels the largest distance in the gel medium while the largest one travels least distance.

In the question there are four DNA fragments with base pairs 4000, 2500, 2000 and 400 so the smallest segment with 400bp will be farthest from the starting point and the largest fragment with 4000bp will travel least distance in the gel medium. Their respective positions are shown in the figure below. The starting point is near the negative electrode.

You might be interested in
Watson and Crick first built a triple-helix model of DNA. In this model, the nitrogenous bases were on the outside of the DNA mo
Sedaia [141]

Because it makes accessing them easier for the cell, it is assumed that the bases will be on the outside of the DNA molecule.

<h3>What is DNA molecule?</h3>
  • Because the two DNA strands are made up of simpler monomeric units termed nucleotides, they are referred to as polynucleotides.
  • Each nucleotide is made up of a phosphate group, a deoxyribose sugar, and one of the four nitrogen-containing nucleobases (cytosine [C], guanine [G], adenine [A], or thymine [T]).
  • An alternating sugar-phosphate backbone is created when the nucleotides are linked together in a chain by covalent connections (also referred to as the phospho-diester linkage) between the sugar of one nucleotide and the phosphate of the next.
  • To create double-stranded DNA, the nitrogenous bases of the two distinct polynucleotide strands are joined by hydrogen bonds in accordance with the base pairing principles (A with T and C with G). Pyrimidines and purines make up the two families of complimentary nitrogenous bases.

To learn more about DNA molecule with the given link

brainly.com/question/22499464

#SPJ4

7 0
1 year ago
CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION THANK YOU!!
Svetlanka [38]
Inverse relationship
4 0
3 years ago
Do you think graphite would most likely display cleavage or fracture? Explain
Brums [2.3K]

In graphite, carbon atoms are arranged in layers. Graphite has cleavage because the weak bonds between the layers break easily. Add a description wheel for fracture in your notebook.

7 0
2 years ago
The manager of a book store surveys people who buy mystery novels to see if the store should expand its hours. What is the popul
kkurt [141]

Answer:

The population is people who buy mystery novels at that specific book store.

6 0
2 years ago
What type of microscope would be most effective for studying a living cell?
mylen [45]
Magnification of at least 400x
3 0
3 years ago
Other questions:
  • Explain true or false if you collect organize and interpret your data properly you will always be able to draw a logical conclus
    6·1 answer
  • What charaterristics do green algae share with plants?
    7·1 answer
  • Arrange these words in a correct order: community, cell, organism, organ system, biosphere, molecule, tissue, organelle, populat
    15·2 answers
  • In what parts of the chloroplast does photosynthesis take place?
    11·1 answer
  • In November 2004 the floodgates of Glen canyon Dam opened in attempt to improve the Colorado river habitat .The release topped 1
    12·1 answer
  • Activities of the digestive system generally increase when it is stimulated by
    10·1 answer
  • Which two features indicate that a cell is a plant cell and not an animal cell? A. cell membrane, flagella B. lysosome, vacuole
    9·2 answers
  • Which is an example of a way that intercellular commination occurs?
    14·1 answer
  • Which of the following is NOT an example of a plant adaptation towards success in their habitat.
    6·1 answer
  • I need to know what is the answer for number 6 and 7 and that’s all
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!