In which of the following ways are DNA and mRNA different? (1 point) A.) Only DNA can be read by tRNA molecules during replication to form copies of the genetic information in the original DNA.

B.) Only DNA contains adenine, guanine, and cytosine in a sequence that can be used to make proteins by unzipping and base pairing in the nucleus.

C.) Only DNA has a single stranded structure which can be replicated to form complementary strands.

D.)Only DNA serves as the master copy of an organism's genetic code which must be replicated by unzipping and base pairing before the cell divides.

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!

idk im sorry.