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
Mrac [35]
3 years ago
10

A segment of DNA is 400 base pairs long and contains 2 restriction sites for the restriction enzyme HindIII. This DNA is cut wit

h HindIII and then run on a gel. How many bands would you expect to see after completing DNA gel electrophoresis and staining the gel?
Biology
1 answer:
r-ruslan [8.4K]3 years ago
5 0

Answer:

I would expect to see 3 bands after completing DNA gel electriphoresis and staining the gel.

Explanation:

The restriction enzyme Hind3 has two Recognization sites in the 400 base pair long DNA molecule.

     As a result the restriction enzyme Hind3 with generate 2 cuts in the target 400 base pair long DNA molecule.

     The number of 2 cuts in the target DNA molecule will generate 3 DNA fragments.From this point of view it can be stated that 3 bands will form after completing DNA electrophoresis and staining the gel.

You might be interested in
In eukaryotic cells, DNA is packaged with proteins into structures called chromosomes. What advantage do chromosomes provide the
Vadim26 [7]

Answer:

Option C, They allow random distribution of genetic material when a cell divides.

Explanation:

The chromatin are responsible for packaging of DNA molecule into smaller space with in a chromosome. It not only package it but also protect it from. Packaging allows for easier division of cells during mitosis and meiosis and hence prevent any kind of damage to the DNA.  

Chromosomes make recombination and random segregation of genetic material to form new cells.  Each new cell gets equal number of chromosomes

Hence, option C is correction

4 0
3 years ago
How did creating a greenbelt affect sprawl? Why do you think this happened?
scZoUnD [109]
The OECD found that the responsiveness of housing supply to demand in the UK was the weakest among developed countries, due in large part to green belt policies. The green belt concept was first introduced for London in 1938 before the 1947 Town and Country Planning Act enabled local authorities to designate the status themselves. The policy was introduced to contain urban sprawl following huge post-war housing developments, and expanded greatly between 1951 and 1964. Since 1979, the green belt has doubled to cover 13 per cent of land in England (while only 2.3 per cent is covered by buildings).

8 0
3 years ago
Which of the following is true? a. Extracellular matrix is a recent discovery. b. Extracellular matrix was discovered nearly 5 y
USPshnik [31]

Answer: d. Extracellular matrix was discovered more than 20 years ago.

Explanation:

According to biological sciences, the extracellular matrix is a matrix that consists of three dimensional network of extracellular macromolecules such as enzymes, collagen and glycoproteins which provide structural and biological support for surrounding cells as well.

It is found that it is discovered over 20 years ago in the matrix formed in the mouse EHS sarcoma. Therefore, correct answer is (d).

3 0
3 years ago
Any change in the nucleotide sequence of DNA is called a?
KiRa [710]

Answer:

mutation

Explanation:

As such, the nucleotide sequences found within it are subject to change as the result of a phenomenon called mutation.

8 0
2 years ago
Please answer all these questions best answer gets 31 points
faust18 [17]

Answer:

sir you will only give me 16 points that's not enough

8 0
3 years ago
Other questions:
  • How can using a dam as a source of freshwater also harm agricultural resources?
    6·2 answers
  • Which of the following has a positive effect by acting as an artificial reef in some areas?
    9·1 answer
  • ¿Qué es homeostasis?
    6·1 answer
  • What term best describes the relationship between these forelimbs
    13·2 answers
  • Select all the correct answers.
    8·1 answer
  • What are the products of step 1 of the hydrogen fusion process in the Sun? Check all that apply.
    7·2 answers
  • Which statement best describes the phases of the Moon?
    6·1 answer
  • A sediment that has a diameter of 0.8 cm would be considered
    8·1 answer
  • Cómo podría tu familia y tú manifestar su participación democrática en la sociedad y el
    6·1 answer
  • A what are the events of a stars life in order
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!