The answer is a. natural selection.
<span>In natural selection, genotype variations that will increase
the chance of survival and reproduction of some organism are preserved and will
be inherited. Darwin's theory suggested that there are variations among
individuals in a population and that these variations will help individuals to
survive. According to Darwin, natural selection is the only factor that affects frequency of different variations.</span>
Answer:
As the bubble is a spherical entity, the probability of total internal reflection from the watery films is high due to its curvature. As a result, most of the light rays get reflected and therefore the air bubble shines brightly with some sparkling in water
Answer:
The best answers to your question, as per the immense amount of research on the topic, would be: The peptides that you would expect to find in the polypeptide that will eventually fold to become an ion channel protein, would be: 1. A signal-anchor peptide, 2. an internal signal peptide and an amino-terminal signal peptide.
Explanation:
Ion channels are transmembrane proteins whose main purpose is to serve as pathways through which different ions, like potassium, or sodium, can cross from both the inside and outside of the cell as it may be required in different circumstances. These proteins, unlike many others, are first translated from genetic material in the cytosol, and then, thanks to signaling sequences on their chain, they will be taken to the ER and Golgi apparatus, where the rest of the translation and the final packaging will be arranged, so that they may be shipped towards their destination, which is the plasma membrane. These proteins, because of their function, need to have a signal-anchor peptide, an internal signal peptide which will direct them to the ER for final assembly and packaging and an amino-terminal signal peptide.
Tymine (t) can only pair with (a) in a dna strand. And the other letters which are G and C can only pair with each other. So A can be with T, T can be with A..... G can be with C and C can be with G.
the letters stand for:
A: adenine
G: guanine
C: cytosine
