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
Montano1993 [528]
2 years ago
15

Which of the following places the steps in the PCR procedure in the correct order?

Biology
1 answer:
Marta_Voda [28]2 years ago
5 0

Answer:

Polymerase chain reaction (PCR) test is used to duplicate traces of DNA from any living form, for identification purposes.  The correct sequence is 1, 3, 2; based on the options given.

Explanation:

The steps to be followed for the PCR procedure are:

<em>Denaturation</em>

Option 1.  Involves incubation at 94°C to denature DNA strands into single strands by breaking of weak hydrogen links

<em>Annealing</em>

Option 3.  Temperature is lowered to 60°C to allow primers joining their similar DNA sequences.

<em>Elongation</em>

Option 2.  Incubate at 72°C to promote the extension of the DNA strands, actually extending them.

You might be interested in
Geothermal energy is an alternative energy source. However, it is not resourceful enough to replace more than a minor amount of
IceJOKER [234]

Answer:

Option (B)

Explanation:

Geothermal energy refers to the heat energy that is stored in the interior of the earth, and is primarily used to generate electricity. The geothermal energy increases with the increasing depth.

This energy is not that resourceful in a broad picture. It is because in order to extract this energy, the drilling and excavations must be made. And it is a very expensive process as it is very difficult to carry out the entire process.

Due to this drawback, it is much less resourceful.

Thus, the correct answer is option (B).

4 0
2 years ago
Apakah yang di maksud dengan udara tidal
Eddi Din [679]
Mooka lana fros till! Boona guane, morokani tam frowlic dashnurp. Fringabade limnock, majin! :)
3 0
3 years ago
Glycerol is one of two molecules that make up a monomer known as?
lukranit [14]
The correct answer is triglycerides, this is the monomer that is made up of gylcerol and one other molecule. The other molecule within the monomer will depend on the use of the tryglycerde - for example, in adipose tissue, tryglycerides are composed of one molecule of glycerol and three moles of fatty acid.
7 0
3 years ago
Scientists rely on models to represent concepts and processes in physical science. Which one of the following is a reason why sc
AVprozaik [17]
In my opinion, the best answer among the choices listed above is option D. The reason why scientists use models because they can <span>represent things that are too small to see. Models are used to describe and explain certain phenomena. Hope this answers the question.</span>
5 0
2 years ago
Read 2 more answers
Which of the following are valid names for the equinoxes?
Tanzania [10]

Among the given name of the equinoxes, the fall equinox and the spring equinox are the valid names for the equinoxes.

The fall equinox, or the autumn equinox is the September equinox, while the spring equinox, which is also known as the vernal equinox is the March equinox.

There are no such equinoxes as partial or total equinox.

Hence, the correct answer is option A and D.

8 0
3 years ago
Read 2 more answers
Other questions:
  • When people have their gallbladders removed, their bodies no longer have a place to store bile, and the bile flows from the live
    12·1 answer
  • The integumentary system consists of the skin,hair,nails,glands,and nevers.Its main function is to act as a battier to protect t
    14·1 answer
  • Which nutrient cycle is most affected by the over-use of ammonia fertilizers on commercial farms, as well as by the accumulation
    9·2 answers
  • While performing an experiment at home, Emma adds lemon juice to a soap solution. How will this affect the pH of the soap soluti
    13·1 answer
  • .
    8·2 answers
  • if the secondary consumers is one of the food chains used 4200 kcal, what amount of energy was absorbed by the producers?
    10·1 answer
  • 7. Which type of transport below moves water through a selectively-permeable membrane from areas of greater concentration to are
    11·1 answer
  • The Heart of a small mammal is pierced by a spear of a hunter. Suggest ONE way in which this would lead to the death of the anim
    15·1 answer
  • Which correctly lists three water sources that contribute to a river system?
    15·2 answers
  • What is photosynthesis​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!