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]
3 years ago
15

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

Biology
1 answer:
Marta_Voda [28]3 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
This sequence encodes for a particular protein that helps bacteria move. A mutation occurs in the sequence, leading to a faulty
Lady bird [3.3K]
The correct answer is is 3
6 0
3 years ago
Read 2 more answers
Why does our tongue get to stick to ice?
ivanzaharov [21]
Because the pole absorbs the heat quite readily, literally sucking the warmth from your tongue faster than your body can supply it. The saliva on your tongue then freezes (provided it is below freezing), with the resulting ice latching onto the flagpole and your very porous tongue.

Hope that helps you w/ ur question:)
5 0
3 years ago
This species has a wide reaching impact on a community
nata0808 [166]

Answer:

B

Explanation:

6 0
2 years ago
Aside from the nucleus, where else can a small amount of dna be found in a eukaryotic cell?
mylen [45]

The nucleus is not the only source of DNA, besides it, DNA is also found in the mitochondria of all eukaryotic cells, as well as in the chloroplasts of plant cells and such DNA is called extrachromosomal DNA.

The DNA from the mitochondria (mtDNA) and chloroplasts are small and circular, which are similar to the prokaryotic DNA.

mtDNA contains its own genes that encode proteins that are part of the electron transport chain.

<span>Chloroplast DNA encodes for the components of the photosynthetic pathway.</span>

3 0
3 years ago
Science Meiosis: Question and answers in photo below:
Bas_tet [7]

Answer:

IM BACK RED

Explanation:

4 0
3 years ago
Other questions:
  • Name another genetic variation among humans that might be an adaptation to the environment
    11·1 answer
  • Which of the follow conditions is associated with too much body fat. A.Bladder Cancer B.Hemochromatosis C.Gallbladder disease D.
    12·1 answer
  • One full cycle of meiosis produces
    12·1 answer
  • One of the first diagnostic tools used at the hospital was an electrocardiogram (EKG or ECG), which reflects the electrical acti
    11·1 answer
  • Biology homework, please help! Thankyou in advance x
    6·1 answer
  • Write a short story about a piece of corn and its journey through the digestive system. It should be in first person. Be creativ
    15·2 answers
  • What is the difference between the position of the surface proteins and the membrane-spanning
    13·1 answer
  • PLZ HELP HAVE 10 MINUTES ON THE TEST LEFT While all the food crops contribute to nutritional health ______ are the most importan
    6·1 answer
  • Glucose is a carbohydrate formed by using energy to convert carbon dioxide and water bonded glucose molecules. What type of reac
    12·2 answers
  • Immense characteristics ?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!