The mRNA molecule is the blueprint for protein assembly in the processes described in the central dogma of molecular biology.
The process of translating the information in DNA to proteins happens in three steps.
Firstly, the DNA molecule replicates itself.
After that one DNA strand (DNA is a double-stranded molecule) transcribes itself into one-stranded messenger RNA (mRNA).
The information is held in the sequence of the nucleotides (Adenine, Cytosine, Guanine, Thymine) and it is read in triplets. So each mRNA is made from a sequence of nucleotides copied from the DNA, that is read in triplets.
Each triplet is holding the information about a specific amino-acid carried by transporter RNA (tRNA).
Proteins are made in the ribosomes in the process of translation, where the sequence on the mRNA is being read and translated into a sequence of amino acids.
The answer is A because the subject is responding to something that is going on outside of it, if that makes any sense :)
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Humid continental climate<span>, </span><span>major </span>climate<span> type of the </span>Köppen classification<span> that exhibits large seasonal </span>temperature<span> contrasts with hot summers and cold winters. It is found between 30° and 60° N in central and eastern </span>North America<span> and </span>Asia<span> in the major zone of conflict between polar and tropical </span>air masses<span>. Along with the </span>continental subarctic climate<span>, the humid continental climate is a primarily Northern Hemispheric phenomena, since landmasses are absent at the significant latitudes in the Southern Hemisphere.</span>
Answer:
Explanation:
In order to reach specific items of food that meet the dietary needs of the giraffe, they must reach for food up in the trees. Giraffes with longer necks are open to a wider array of food whereas the short necked giraffes are limited. The longer neck is seen to be more favorable. When a trait is more favorable, it has a higher likelihood of being passed on. The less favorable traits are eliminated or "weed" out and the taller giraffes mate with other tall giraffes, generating a greater population with this trait. Again, it is solely dependent on what is available around them and their surroundings.
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