Answer:
Sugars and phosphates
Explanation:
DNA is deoxyribonucleic acid.
The backbone is based on a repeated pattern of a sugar group (deoxyribose) and a phosphate group.
The image below shows one straightened-out strand of DNA with a backbone of alternating sugars and phosphates.
A is wrong. There is no ribose in DNA.
B is wrong. The nucleic acids A, C, G, and T join one strand of DNA to the other.
C is wrong. There is no RNA in DNA.
Answer: The advancement in the science and technology also comes with some of the risks which needs to be maintained at the time of surgery.
Explanation:
The fluoroscopy involves the use of X-rays, a form of ionizing radiation which increases the chances of radiation induced cancer.
Though this risk depends on the risk length of procedure and intensity of rays.
The higher intensity of the rays can also cause burns on the skin which can be equivalent to the sun burns.
The brightness of the screen is also introduced so that the patient is exposed to less intensity of rays.
Answer:
Sand
Explanation:
A well should be placed so that contamination from any source moves away from the well and not toward it.
Answer: The program completed in a quarter of the time with four computers versus one computer
Explanation:
Distributed computing simply means using distributed systems in solving computational problems and this is done as the problem is divided into many tasks, whereby the tasks are accomplished by one or more computers.
Following the information given in the question, a speedup of 4 indicate that the program completed in a quarter of the time with four computers versus one computer.
Answer:
Explanation:transcription/RNA processing:
a) snRNA
c) mRNA
e) pre-mRNA
2. translation
b) tRNA
f) rRNA
3. not used in protein synthesis
d) RNA primers
