Answer:
It's B.
Explanation:
uhm, i already went in one? btw, why "mess"? ️ ️
Answer:
Necrosis is an uncontrolled and passive process that usually affects large fields of cells, whereas apoptosis is a controlled and energy (ATP)-dependent event usually limited to individual or small clusters of cells.
B. Electron microscopes are tools used to study living organisms when they're alive.
C. Electron microscopes focus beams of light using magnetic fields.
End of exam
D. Compound light microscopes utilize lenses and beams of electrons to produce images.
DNA
RNA
proteins
new cells
Question 2.2. Which sentence correctly describes transcription? (Points : 1)
RNA is the direct result of DNA transcription.
Proteins are the direct result of RNA transcription.
Protein transcription takes place in the nucleus of a cell.
RNA transcription takes place in the cytoplasm of a cell.
Question 3.3. What is the DNA backbone made of? (Points : 1)
a nitrogenous base and a sugar molecule
nitrogenous bases, sugar, and phosphates
sugar and phosphates
a polymer of nitrogenous bases
Question 4.4. If a segment of one strand of a DNA molecule has 500 adenine bases, how many thymine bases does the other strand have? (Points : 1)
500
250
0
You can't tell from that data.
1. Proteins
After RNA is formed, it is transported out of the nucleus and goes to the cytoplasm. From the cytoplasm, it goes into the ribosomes, where protein synthesis occurs. Together with transfer RNA (tRNA), mRNA will direct protein synthesis.
2. RNA is the direct result of DNA transcription.
Transcription is a process where DNA is transcribed into messenger RNA (mRNA). This carries all the information that will be needed to synthesize proteins.
3. Sugar and phosphates
The backbone of DNA, is made of sugar and phosphate. They form the structural framework of nucleic acids. They are arranged alternately, sugar-phosphate group-sugar and so on. The backbone refers to the sides of the DNA "ladder."
4. 500
In base pairing, guanine and cytosine pair up and adenine pairs up with thymine. Fore every adenine, there will be a thymine. If there are 500 adenine bases, there will be one for each one. So the answer is 500.