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mylen [45]
3 years ago
14

John Flashback was running downfield with the football. As he tried to avoid a tackle, he stepped in a hole and his foot was twi

sted under him with great force. The X-ray shows a "broken ankle". The structure that is most likely broken is the
A. calcaneus bone.
B. the patella.
C. a bone in the
D.the lateral malleolus of the fibula.
E. the head of the second metatarsal.fibula
Biology
1 answer:
Brums [2.3K]3 years ago
6 0

Answer:D.the lateral malleolus of the fibula.

Explanation:The ankle is the area/joint where the foot and the leg meet. The ankle consists of three joints which includes

(1) Talocrural joint,

(2) The subtalar joint,

(3) Inferior tibiofibular joint.

The main bones of the ankle region are the talus (in the foot), and the tibia and fibula (in the leg). The malleolus is the bony prominence on each side of the human ankle and the most prominent point of possible injuries or fracture when twisting takes place under great force.

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how many dna molecules would there be after four rounds of pcr if the initial reaction mixture contained two molecules?
Marat540 [252]
  1. Answer: 32 molecules of DNA would be after four PCR if the initial reaction mixture contained two molecules
  • After 'n' rounds of the polymerase chain reaction, it is feasible to produce 2 n DNA molecules from a single DNA template molecule (PCR). Therefore, 2 to the power 4  = 16 DNA molecules will be produced after 4 PCR cycles
  • If two molecules are doubled four times, 32 DNA molecules are created.

Explanation:

The PCR method is what?

The highly sensitive PCR method enables quick DNA amplification of a particular section. Using visual methods based on size and charge, PCR may detect and identify gene sequences by producing billions of copies of a certain DNA fragment or gene.

What does a PCR have to accomplish?

A given DNA segment can be quickly multiplied (amplified) into millions or billions of copies using the polymerase chain reaction (abbreviated PCR), allowing for more in-depth analysis.

What are the three main PCR steps?

For any DNA synthesis reaction, there are only three easy stages that must be completed: First, the template is denaturated into single strands. Next, primers are annealed to each original strand to synthesise new DNA strands. Finally, the new DNA strands are extended from the primers.

To know more about PCR visit :

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