Why is dna smaller than rna?

RNA is actually smaller than DNA

Explanation:

DNA contains codes for making lots of different proteins, while RNA only contains the info to make one single protein, or just a part of a protein if it is made up of more than one other protein.

the answer to the blank provided is “an autosomal gene that is required for the expression of genes on the x chromosome”.

testis-determining factor, abbreviated as td, which is more popularly known as sex-determining region y or sry protein, is a dna-binding protein or  gene-regulatory protein/transcription factor, encoded by the  sry gene. it is the gene responsible for the initiation of male gender determination in humans.