Respuesta :
Answer:
RNA. (ribonucleic acid).
Explanation:
RNA is present as a genetic material in case of some viruses. RNA is produced from DNA by the process of transcription. Three different type of RNA are rRNA, mRNA and tRNA.
RNA is the polymers of ribonucleotides. The RNA consists of nitrogenous base ( adenine, uracil, guanine and cytosine, pentose ribose sugar and the phosphate group. The RNA is highly unstable and may also acts as an enzyme in molecular reactions.
Thus, the correct answer is RNA.
In the given case, Yuri is working with an RNA or a ribonucleic acid.
• Like DNA (deoxyribonucleic acid), RNA is also a nucleic acid, however, unlike DNA it is a single stranded molecule.
• The strand of an RNA exhibits a backbone formed of alternating sugar, that is, ribose and phosphate groups.
• To each of the ribose sugar one of the four bases, that is, uracil, adenine, guanine, or cytosine is attached.
• In a cell, different types of RNA exists, that is, ribosomal RNA, messenger RNA, and transfer RNA.
• These RNAs takes part in the regulation of gene expression.
Thus, Yuri is working with a nucleic acid, that is, RNA.
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