If adenines make up 19 of the bases in the sequence of a fra

If adenines make up 19% of the bases in the sequence of a fragment of single- stranded RNA, what can you tell me about the rest of that RNA fragment’s base composition? Please explain !

Solution

If adenines is 19% of all bases of RNA then other bases has total composition of 100-19= 81%.

The individual base composition cannot count on the basis of single base composition. It is because the RNA is single stranded and we cannot say how much Guanine will available in the strand. The same thing allows with other bases. The rest of the bases will count for 81%. You can think of Chargaff’s rule but it is applied only to double strand DNA. If the 19 % adenines are for the double strand RNA then the rest of bases composition can be countable.