Answer:
The short answers are Yes, it's random, and Yes, it "waits" for some time.
Different tRNA's just float around in the cytoplasma, and diffuse more or less freely around. When one happens to bump into the ribosome, at the right spot, right orientation, and of course which has an anticodon matching the codon in frame of the mRNA being translated, it gets bound and takes part in the synthesis step that adds the amino acid to the protein that is being synthesized.
The concentration of the various species of tRNA is such that translation occurs in a steady fashion, but there is always some waiting involved for a suitable tRNA to be bound. In that waiting time, the ribosome and mRNA stay aligned - that's because the energy that is required to move the to the next position is delivered as part of the same chemical reaction that transfers the amino acid from the tRNA to the protein that is being synthesized.
I'm not entirely sure what happens if there is significant depletion of a particular species of tRNA, but I think it's likely the ribosome / RNA complex can disassemble spontaneously. But spontaneous disassembly can't be something that occurs very easily after translation was initiated, since we would end up with lots of partial proteins which I expect would be lethal very soon.
(Can't know for sure though, but it would be very hard to set up an experiment to measure just what will happen and even if you got a measurement it would be hard to figure out how it applies to normal, living cells. I can't imagine tRNA depletion occurs in normal, healthy living cells.)
Answer:
its the deterioration of the environment through depletion of resources such as air, water and soil or in a more simple form: the destruction of ecosystems
Explanation:
<span>The circulatory body system, otherwise known as the cardiovascular or vascular system, is composed of four major parts: the heart, arteries, and veins. The vital responsibilities of the said system is to circulate blood throughout the body, transport nutrients, and carry away waste for elimination. Circulation starts when the heart pumps out blood through the main artery aorta, into the lung capillaries for oxygenation, and throughout the body via the arteries. Besides oxygen, nutrients and metabolic products are distributed as blood circulates, waste is processed and soon after eliminated by the kidneys as blood circulates there, and un-oxygenated blood returns to the heart through the superior and inferior vena cava (veins), the whole cycle therefore carrying on.</span>
The karyotype is a test that provides information on the number, size and shape of chromosomes in a sample of body cells. It can be used to find out whether a fetus has some chromosome defects that could cause developmental problems, birth defects or disability. It can also be used for determining the sex of the baby.
Answer:
The organisms in that habitat including the extreme bacteria, will gradually decline
Explanation:
According to the question, an extreme bacteria lives and thrives in an hydrothermal vent where extremely hot water, methane gas, and sulfur are released. The hydrothermal vent located deep in the ocean is the habitat of the bacteria, and considering the fact that it thrives there means it is better adapted to do well in such extreme environment using the sulfur and methane gas produced by the vent for its development.
If the hydrothermal vent becomes inactive i.e. no production of sulfur and methane, and cold, the extreme bacteria might not survive as the conditions required for its optimal functioning are no longer met. The bacteria also makes up the base of the food web in that habitat (constituting organisms like mussels, tube works), meaning that, it begins the feeding chain in that habitat. Hence, a decline in the number of the bacteria will result in a decline in the number of other organisms dependent on the bacteria as energy source (food).
