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
Tatiana [17]
4 years ago
8

PCR amplification of DNA is a useful technique when

Biology
1 answer:
adell [148]4 years ago
7 0

Answer: there is limited sample.

Explanation:

Polymerase chain reaction is a technique that is used for amplifying samples of DNA in vitro. This technique was discovered by Kary Mullis. It can be useful for producing multiple copies of DNA available in very low amounts. It can amplify genomic DNA 50- 250 ng and 1-10 pg for viral or plasmid DNA.

The PCR process involves 3 steps which take place within apparatus thermal cycler. The three steps are:

1. Denaturation: The DNA sample is heated at 94 degree celsius. In this the double stranded DNA is converted into individual single strands.

2. Annealing: The next step involves the attachment of each single stranded DNA with a primer. This step takes place at 60 degree celsius.

3. Extension: In this under the influnece of enzyme Taq polymerase, single nucleotide bases are added to the primers. This step takes place at 72 degree celsius. Entire complentary strand build up this way by each single strand. And a new copy of double stranded DNA is produced from each single strand.

You might be interested in
What happens to the rate of photosynthesis when carbon dioxide is increased?
pychu [463]
We get weaker because put yourseld undersoemthing but not too long bc youll pass out but youll notice youll get weaker. so theres your answer buddy.
5 0
4 years ago
What happens next after the ribosome reaches the start codon?
iris [78.8K]

RNA molecules attach to codons when the ribosome reaches the start codon.

Explanation:

The start codon initiates translation of the mRNA by the ribosome into a polypeptide. When the ribosome finds the start codon, it attaches to the mRNA and the first amino acid, methionine, is recruited. The ribosome then continues translating the rest of the mRNA until it encounters a stop codon that initiates the ‘knocking off of the ribosome from the mRNA.

Learn More:

For more on translation check out;

brainly.com/question/2273699

brainly.com/question/13572447

#LearnWithBrainly

8 0
4 years ago
uhm i have 5 questions due in an hour so please help. It's 45 points and they're all abt biology btw~
Mariulka [41]

Answer:

the point of science is to disprove hypothesis so having a hypothesis that doesn't allow that to happen is not good science

2. they don't fit in our mouths so are a trait from when we had larger jaws

3. bones of your lower jaw, middle ear and voice box (they aren't actually gills fyi, they just look like them)

4. likely yes as their bones were hollow but likely only able to fly short distances, the thought was that they couldn't do their size and weight but with hollow bones they were able to like a quail would

5. no because they could be sister taxa, you would have a hard time proving exactly that this new fossil is the common ancestor that birds came from to replace the old hypothesis (guess) of which one did.

Explanation:

3 0
3 years ago
Read 2 more answers
WHAT ARE THREE ORGANS THAT WORK WITH THE ESOPHAGUS
viktelen [127]

Answer:

Stomach, small intestine, and pancreas

Explanation:

hope this helps!

5 0
3 years ago
Read 2 more answers
How would a harsh winter most likely affect the rabbit population size?
LenKa [72]

Answer:

In harsh winter, usually there's less food, therefore, rabbits will not be able to find enough food and the population of rabbits will decrease.

8 0
3 years ago
Other questions:
  • Which biological macromolecule is the most important and why
    7·1 answer
  • PLEASE HELP
    15·1 answer
  • Which animals is attracted to magnets?<br> Please answer it fast!!
    7·1 answer
  • Which letter represents a landform that was made when two tectonic plates slid past and pushed against each other? PLZ ANSWER AS
    11·1 answer
  • What are two reasons why the heart needs its own blood supply
    14·1 answer
  • HELP ASAP!! WILL GIVE 13 POINTS TO THE FIRST PERSON WHO ANSWERS THIS! AND WILL MARK AS BRAINIEST
    5·1 answer
  • Every cell is surrounded by a thin membrane. What is the main function of this cell membrane?
    14·2 answers
  • What three units make up a nucleotide?
    15·1 answer
  • What are Haploid And Diploid Cells?
    13·2 answers
  • Can anyone help me ill give brainliest, ( I inserted a picture)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!