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jeka94
3 years ago
14

Describe one similarity and one diffence between DNA and RNA

Biology
1 answer:
AveGali [126]3 years ago
4 0

Nucleic acids are the biolmolecules which are responsible for carrying information from one generation of organisms to the other. There are two types of nucleic acid namely the deoxyribo nucleic acid (DNA) and the ribo nucleic acid (RNA).

The similarity between the DNA and RNA is that both act as the genetic material carrying genetic information in them. Both are made up of polynucleotide chain with the repeating units called the nucleotides containing a nitrogenous base, a pentose sugar and phosphate. The difference lies in the type of the sugar and nitrogenous bases present. In RNA, the sugar is a ribose. In DNA, the sugar is a deoxy ribose derived from a ribose sugar by the loss of an oxygen atom. The nitrogenous bases of DNA are the adenine, guanine, thymine and cytosine. Whereas, the nitrogenous bases of RNA are the adenine, guanine, cytosine and uracil. Also, DNA is a double stranded molecule with two polynucleotide chains, whereas RNA is single stranded.

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Refer to Animation: Base Excision Repair. In the example in the animation, uracil is incorrectly paired with guanine. What is th
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<h2>Mutation will occur </h2>

Explanation:

Base excision repair operates for small DNA damage such as deaminated bases

  • DNA glycosylase plays an important role in cleavage of glycosidic bond of abnormal base (does not cleave phosphodiester bond)
  • Uracil is incorrectly paired with guanine then mutation will occur
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  • Transition is a mutation in which one purine(adenine or guanine) is substituted for other or one pyrimidine(cytosine or thymine or uracil) is substituted for other

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4 years ago
Consider the reaction 2 h2 o2 --&gt; 2 h2o what is the ratio of the initial rate of the appearance of water to the initial rate
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Its chemical formula, H2O, reveals that each of its molecules is made up of one oxygen and two hydrogen atoms that are linked together by covalent bonds. The hydrogen atoms are at an angle of 104.45° to the oxygen atom.

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What are the hair cells and what are their functions?
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