The yeast genome is approximately 1/250 the size of the human genome and yet it contains approximately 1/5 the number of genes. Which of the following is the BEST explanation for this?
A) The genes in yeast contain far fewer codons compared to human genes.
B) The yeast genome contains many overlapping genes.
C) Yeast chromosomes contain much smaller centromeres and telomeres.
D) The yeast genome contains much less intergenic DNA and fewer introns.
E) Amino acids in yeast are coded for by two-base sequences instead of three-base sequences as found in humans.
Ans: D) The yeast genome contains much less intergenic DNA and fewer introns.
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