The answer to the question stated above is non-disjunction.
The palm has thicker skin and it is tougher because the inside of your hand needs more protection from touching more things
1. RNA is single stranded
2. DNA is double stranded
3. Nitrogenous bases can be found in both RNA and DNA.
4. Thymine is found in DNA
5. Uracil is found in RNA
6. DNA has a double helix structure