Answer:
e) All of the answers are correct
Explanation:
The first X-ray picture of DNA taken in 1952 by Rosalind Franklin using the X-ray crystallography technique revealed the helical shape of DNA. Based on this discovery, it was discovered later on that the DNA molecule was made of two chains of nucleotides and at high humidity i.e when exposed to water it becomes long and thin.
Answer:
they must focus on it instead of focusing on useless information
Yes
Explanation:
If two bottles are made up of the same substances, their particles are identical and the same.
According to the law of constant composition "all pure samples of the same chemical compounds contain the same proportions of the elements by mass".
- Every time we have a particular substance, it has the same percentage composition
- If we have two bottles lets say containing water.
- Both bottles would be made up of water molecules with two atoms of hydrogen and 1 atom of oxygen in their composition.
- So they contain the same substances that are the same and identical.
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The answer definitely is b. ie. exocytosis.
Exo( latin origin) means out.
Please mARK ME AS BRAINLIEST.
Answer:
Ionizing radiation
Explanation:
Ionizing radiation is a method of sterilization that can be used to sterilze material that can not withstand some higher temperature and cannot be exposed to water for sterilization.
It is form of energy that is released when atoms is released to move in the form of electromagnetic waves or particles. such as; X-rays or Gamma rays particles,neutrons, alpha or beta.
It could be dangerous if atoms inliving cells is exposed to it because the cell will be ionized, and it can lead to death of cell , or the mutatation of cell and can lead to cancer. Although not all cells are affected by ionizing radiation.
1)X-Rays, X-rays move in the form of photons energy .
2)Alpha Particles. Alpha particles have less penetration than gamma ray they don't penetrate skin as x-rays
3)Beta Particles, they are particles of electrons which are faster than alpha particles.
