Afghanistan, meanwhile, is smaller than Texas on its own. If youâre the right kind of nerd, you can probably do this forever and not get boredâcheck it out, Mexico is maybe two and a half Texases! As a frame of reference for how big parts of the world are, Texas is a pretty good one.
In fact, the actual structure of the DNA molecule and how it codes for proteins is the same from bacteria to yeast to plants and animals. The DNA molecule in plants, humans, and all living things are all the same shape -- like a twisted ladder, or a double helix.The backbone of the ladder is made up of sugar and phosphate molecules. Each rung of the ladder is made up of two bases that stick out from the backbone and pair in the middle (a base pair).he building blocks and shape of DNA molecules in humans, plants and every living thing is the same -- we all have the famous A, C, G, and T's.
RNA is usually single stranded while DNA is double stranded. RNA uses the base uracil instead of the base thymine used by DNA. RNA polymerase does not need to use the enzyme helicase to unwind the strands of DNA, nor does it need a primer to transcribe. DNA polymerase needs both to replicate DNA.NA uses the base uracil instead of the base thymine used by DNA. RNA polymerase does not need to use the enzyme helicase to unwind the strands of DNA, nor does it need a primer to transcribe. DNA polymerase needs both to replicate DNA.