Which of the following contain genetic code made of rna as well as the reverse transcriptase enzyme?

a: single-stranded dna viruses
b: prions
c: viroids
d: retroviruses

D: retroviruses

Explanation:

Retroviruses made up of RNA genetic code which is embedded within a protein shell and enclosed by a lipid layer.  The genetic material of retroviruses also encode an enzyme called as reverse transcription whose catalytic function to transcribe the  retrovirus RNA in to DNA.

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photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.