Which of the following is true about human dna? a. a newt, onion, and amoeba all have smaller genomes than we humans have. b. human genes do not have non-coding regions of dna within them. c. the genome size of an organism is a good measure of the complexity of that organism. d. more than 95% of our dna is non-coding dna. e. bacteria have far more non-coding regions in their dna than humans.

d. More than 95% of our DNA is non-coding DNA

Explanation:

In humans only about 1% of DNA is coding, that is, only 1% of our genome is composed of exonic regions capable of synthesizing proteins. Teherefore, the other 99 percent is noncoding. When this was discovered the scientists thought that 99% of non-coding DNA was "junk" , however,  now we know that some of the non-coding DNA is important to regualte  gene expression.

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.

c. live where it’s cold and icy