Which molecule is not found in dna?

Uracil base of pyramidines is found only in RNA and not in DNA. It is for the reason as mentioned below. There are usually four bases - two of them, namely, adenine and guanine, are referred as purines; and two others, namely, thymine and cytosine, are referred as pyramidines.

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.  

1. b.

2. d.

3. a.

5. d.

6. c.

these are the only ones that i know, i hope this , and good luck.