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For a molecule to be genetic material one criteria-it is able to express itself in the form of Mendelian characters. Wat does it mean? This property is more for RNA or DNA

For a molecule to be genetic material one criteria-it is able to express itself in the form of Mendelian characters. Wat does it mean? This property is more for RNA or DNA

Grade:12

3 Answers

Aabid Hussain
askIITians Faculty 576 Points
7 years ago
Hi,
Thank you for asking

Here, the sentence refers to the character expressed by either of the alleles. This means the gene encoded in the material must express themselves either as a dominant character or as recessive (in homozygosity) only.

To be a genetic material, the molecule should be more stable and we know that RNA have -OH group at C2 positionwhich is reactive and DNA do not have (that’s why deoxy). Apart from this, DNA also contains Thymine which is methylated form of Uracil. This also contribute in making DNA more stable.

Hope the answer to the question
nihala
27 Points
7 years ago
Thanz for ur and.plz tell me why presence of OH group in its nucleotide make RNA labile and easily degradable
Aabid Hussain
askIITians Faculty 576 Points
7 years ago
Wow, that’s really a conceptual question!
By the way, to explain this question, I have to let you know a little bit about the reactivity nature of elemental oxygen.

As oxygen can form hydrogen bond due to extra electronegativity which marks it as an indicator to be degraded by the mRNA degradationmachinery (which is a topic of further discussion).

Hope the answer to the question

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