In the following qualitative histogram, which two curves better correspond to human exon and intron length distributions, respectively?
A) Curves 1 and 2
B) Curves 2 and 1
C) Curves 2 and 3
D) Curves 3 and 2
E) Curves 3 and 1

Question

In the following qualitative histogram, which two curves better correspond to human exon and intron length distributions, respectively? 
A) Curves 1 and 2 
B) Curves 2 and 1 
C) Curves 2 and 3 
D) Curves 3 and 2 
E) Curves 3 and 1

Quizplus · Accepted Answer

Our exons have a narrow distribution of size around the mean value of about 150 nucleotide pairs, whereas introns can vary greatly in size from about 10 to over 100,000 nucleotide pairs.

In the Following Qualitative Histogram, Which Two Curves Better Correspond