True
Changes in the transcription of mRNA or the translation of a polypeptide are not considered to be mutations because they are not permanent changes to the cell.
Explanation:
The half-life of mRNA and proteins is short. mRNA has an average of 10 hours of life span while proteins have an average of several days. Therefore mutation in these biomolecules will only persist as long as this mutated mRNA of protein exists. After its life-span, the molecule is degraded and replaced by a non-mutated mRNA or proteins. This is because the piece of DNA that codes for the mRNA and subsequent protein is not mutated. A mutation on DNA is the permanent kind of mutations because DNA is a highly stable molecule that stores information about the cell.
Learn More:
For more on mutations check out;
brainly.com/question/781815
brainly.com/question/3069156
brainly.com/question/2619737
#LearnWithBrainly
Homology
Homo=same
logy=combing of (I think)
so it basically says that you can point to a common ancestor because of a similar design (e.g. teeth, stomach, etc.) found in almost all creatures.
This is not a valid argument as just because something is similar does not mean it originated from the same source.
For example,
an Audi car and a Ford car may have similar features, like an engine, seatbelts, steering wheel. However, just because they are similar does not mean the same engineer designed both cars.
Answer:
A subsurface mine
Explanation:
Subsurface mining is the extraction of minerals and ores from underground. Subsurface mining is the removal of deposits from the earth by drilling underneath layers of rock and dirt. These deposits are difficult to reach from the surface and require the drilling of vertical or horizontal shafts for access.
Actually the answer on this question would be:
“reactor coolant”
The reactor coolant mostly used is simply sea water, or
water could be. The role of the reactor coolant is simply to cool the reactor.
It does not come into contact with any radioactive source since it only cools
the reactor from the outside, it acts like a jacket of coolant.
