An intron is a segment of a DNA or RNA molecule that does not code for proteins and interrupts the sequence of genes.
A exon is a segment of a DNA or RNA molecule containing information coding for a protein or peptide sequence.
Answer:
C is yo answer
Explanation:
Kristin's answer is the best.
It is the only correct answer.
The answer is D. . . . . . . . . .
it is both heterotrophic and autotrophic
