Genes are partly in chromosomes and partly in DNA.
Answer:
1st blank-- villi
2nd blank-- surface area
<em>hope</em><em> </em><em>it</em><em> </em><em>helps</em><em> </em><em>u</em><em> </em><em>dude</em><em>(^^)</em>
ELECTRON MICROSCOPES USE A BEAM OF ELECTRONS INSTEAD OF LIGHT TO MAGNIFY IMAGES
