<span>these for sure:
"by coded instructions contained in DNA", as in: DNA -> mRNA -> protein
"through the presence of organic catalysts", ribosomes catalyze peptide bond formation
But maybe also: "by spontaneous bonding of amino acid".
it's a spontaneous process - energetically. </span>
A five-cycle PCR process is started with a single DNA duplex. How many copies of your sequence, in theory, do you have right now? 32.
<h3>What is the PCR?</h3>
1) PCR, or polymerase chain reaction, is a method for producing several copies of a particular DNA region in vitro (in a test tube rather than an organism).
2) Taq polymerase, a thermostable DNA polymerase, is used in PCR, and DNA primers made especially for the desired DNA region are necessary.
3) PCR allows for the production of several copies of the target region by cycling the reaction repeatedly through a series of temperature changes.
4) PCR has a wide range of useful research applications. It is frequently employed in forensic analysis, medical diagnostics, and DNA cloning.
To know more about PCR, visit-
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On the planet earth. They exist in what we call the "world", which holds all seen life.
The correct answer for the question that is being presented above is this one: "d. A special function of the spindle apparatus forces X and Y together."
Here are the following choices:
<span>a. They do share short homologies at their respective tips.
b. They use a unique sex-linked mechanism not present in other pairs.
c. They do not need to pair because they are not a homologous pair.
d. A special function of the spindle apparatus forces X and Y together.</span>