7. this was a small example to learn concepts, and it is much smaller than real genes. in a real gene, the exons average about 150 bases each and are almost always less than 400. introns can be highly variable in length but may be hundreds of bases. a small gene might have 4,500 bases and many exons and introns. remember that in this activity, each square was used to represent one base. one or two exons or introns might fill up a sheet of graph paper. how many pages would you need to represent a small gene of 4,500 bases? (figure out or count how many squares are on one sheet of graph paper. then figure out how many sheets would have 4,500 squares.)

Okay, ill will try to help the best I can from what I read. So, If the grid you are using is 30x45(1,350 squares) and the small gene is about 4,500 bases, I would say you need at least 4 pages.

1350x3=4,050 bases

1,350x 4= 5,400 bases

It would be good to have the extra room to just in case you need to add anything else. I say this because it sounds like there could be more added. So I hope I helped in some way, and please correct me if I'm wrong.

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying

lunar landing mission. apollo 11 was the first manned mission to land on the moon. the first steps by humans on another planetary body were taken by neil armstrong and buzz aldrin on july 20, 1969. the astronauts also returned to earth the first samples from another planetary body.

explanation: