B
DNA does not move from the limits of the nuclear membrane. The genetic information on the DNA strand is translated into proteins through the mediation of messenger-RNA. DNA is transcribed into mRNA that crosses the pores of the nuclear membrane to the cytoplasm. The mRNA directs how the ribosomes will manufacture particular proteins based on the coded information from the DNA.
Explanation:
The nuclear membrane protects the genetic material by regulating the types of substances that can cross into and out of the nucleus. This ensures that DNA maintains its integrity which is critical for the proper function of the cell.
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For more on the significance of the nuclear membrane check out;
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Answer:
Option D. RNA is found only in prokaryotic cells, while DNA is found in both, is the correct option.
Explanation:
RNA is found in all cells i. e. Prokaryotic and eukaryotic cells. RNA is a molecule which is responsible for the production of protein for the cell. The main difference between DNA and RNA structure is uracil in place of thymine and ribose sugar in place of deoxiribose.
Factors b,d,e,g are favorable to fossil formation and preservation.
<span>Hard bodies are more easily preserved; rivers and oceans deposit muds that keep bodies intact for long times after death; large population and long existence provide more opportunity for fossils to form; and a low oxygen content impedes decay and inhibits predators. </span>
<span>Factors a,c,f,h are unfavorable to fossil formation and preservation. </span>
<span>Thus, Organism E with 4 positive factors is number 1 -- has the top chance of forming a fossil. </span>
<span>Organism D with 4 negative factors would be number 5 -- has very little chance of forming fossils. </span>
<span>Of the other 3, all have soft bodies, so are "disadvantaged" compared to E...but </span>
<span>Organism A has no OTHER disadvantages, so is probably number 2 (second best fossil chance). </span>
<span>Organism C has ALMOST everything going against it -- despite its large population and long existence, it has no other positive factors -- so I'd put it at number 4 (second worst). </span>
<span>To summarize, my rankings are </span>
<span>1. E, 2. A, 3. B, 4. C, 5. D</span>
Farm mechanization refers to the use of agricultural machines to take the place of manual labor on farms.