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
klasskru [66]
3 years ago
12

Scientists typically amplify multiple str fragments from an individual in a single pcr. explain how they are able to do that.

Biology
1 answer:
navik [9.2K]3 years ago
4 0
STRs are short sequences of the DNA that are repeated multiple times on a DNA strand. The PCR process can multiply specific DNA sequences by using primers.
Primers are short DNA sequences that are complementary to the sequence we want to multiply. In the PCR (polymerase chain reaction) process primers can be used to amplify specific STRs. The PCR process has multiple cycles with temperature changes. In each cycle, the two DNA strands are separated and the primer and the STR are synthesized. With each new cycle, there is two times more of the amplified sequence, so the number of targeted sequences grows exponentially, resulting in a large number of copies of the sequence we want to have.
You might be interested in
Tundra and desert biomes have shallow soil profiles because weathering is limited by a lack of
nalin [4]
<span>Extreme temperature and bedrocks Tundra and desert both have shallow soil profiles because of the extreme temperatures and the bedrocks it has. In the case of tundra, it has extreme cold temperature and the soil were covered in ice in long periods of time. Because of this, the plants were unable to get water from the bedrocks resulting in plants dying. In the desert, however, it has extreme hot temperature making the plants unable to survuve due to lack of water in the environment and in the bedrocks. The plants that can only survive in this temperature are the plants that has the ability to store water in their system.</span>
7 0
3 years ago
Read 2 more answers
Do you think it is more efficient for people to eat plant products or animal products
lozanna [386]
Plant products duh(im a vegetarian)

its actually really healthy and is quite easy once u get the hang of it. u end up eating more veggies then u might want but it really healthy and benfits you more than the meat does. ive been a vegetarian forever (never eaten meat before ever) and im athletic and everything just like any other meat eater
6 0
3 years ago
Read 2 more answers
What of matter are always moving <br><br> True <br> Or<br> False
Svetlanka [38]

Answer: True?

Explanation: The wording of the question is confusing?

7 0
3 years ago
Science rejects any hypothesis not supported by __________________________ and the results of ___________________________ experi
Ket [755]

Answer:

Observations; control.

Explanation:

A hypothesis is considered to be tentative or an educated guess and can be defined as a testable explanation for an  observation or a scientific problem. An example of a hypothesis is saying, Corona virus is caused by the introduction of the "5G" technology.

On the other hand, a control experiment  can be defined as an experiment in which a condition assumed to be a probable cause of the effect is being compared to the same  situation by the scientist without involving or using the suspected condition.

Hence, science rejects any hypothesis not supported by observations and the results of control experiments.

<em>This ultimately implies that, for any hypothesis to be acceptable in science, it must be supported by observations and the results of control experiments; this give rise to factual informations, theories and by extension solutions to problems.</em>

7 0
3 years ago
Helium nuclei are more difficult to fuse than hydrogen nuclei because they have a greater positive charge.
nataly862011 [7]
<span>Helium nuclei have a positive charge of 2+ when observed. Compared to a hydrogen nuclei, we can see that the Helium nuclei is more difficult to fuse as it has a greater charge than Hydrogen 1+. This chemical difference makes the answer true.</span>
6 0
3 years ago
Other questions:
  • Sprains frequently occur in the ________, while strains are common in the ________ area.
    5·2 answers
  • Matching pls help I tried using my notes
    11·1 answer
  • Which of the following microorganisms is most likely to get its main source of nutrition from a host?
    14·2 answers
  • How a whale carcass will help the deep ocean creatures
    11·1 answer
  • Signals are sent from one neuron to another by jumping across a tiny space known as what
    8·1 answer
  • An _ is a characteristic of matter that can be observe as it changes to a different type of matter
    10·2 answers
  • Some forces act at a distance and thus do not require _______.
    10·1 answer
  • Salivary amylase is an enzyme found in the mouth. it breaks down starch into sugars. why will salivary amylase only break down c
    8·1 answer
  • Which best describes lymph?
    11·2 answers
  • How long does sweetened condensed milk last in the fridge?.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!