Answer:
I know that its true that fish have 4 limbs and its also true that sharks have bony skeletons
Explanation:
Hello. This question is incomplete. The full question is:
"You determine that you have only 3 copies left of an important DNA fragment, so you decide to amplify it. Using flanking primers, how many PCR cycles would you have to run to generate over one billion (10^9) copies of the fragment?
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Answer:
Approximately 29 cycles of PCR would be required.
Explanation:
As you may already know, PCR is a technique used in molecular biology that allows part of a DNA molecule to be recycled into millions of copies.
PCR allows this replication to be done through cycles. Each PCR cycle lasts about 2 minutes and allows the DNA molecule to undergo the separation of the strands, the binding of the primers and the synthesis of new DNA strands through DNA polymerase. This cycle is usually repeated 32 times, but this number may change depending on the number of copies the researcher thinks is necessary.
In this case, if a researcher wants 10 ^ 9 copies of DNA, he must do the following calculation to find the number of PCR cycles needed:
32 ^ x = 10 ^ 9
x = 28.3 = approximately 29 cycles.
This suggests subclinical deficiency
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Subclinical deficiency is a condition in which a nutritional deficiency that is capable of having an effect on an individual’s health is not severe enough to produce typical deficiency signs and symptoms. Subclinical deficiency is discovered only by biochemical changes and it can change to clinical deficiency if it is not treated.
The answer is; the cell could not pair homologous chromosomes during meiosis.
For meiosis to occur, the sister chromosomes pairs line up in the metaphase-plate so that each chromosome of the pair is pulled to the opposite pole by the spindle in anaphase. Therefore, meiosis can only occur in cells with normal ploidy so the ploidy halved by meiosis.
