teh structure of DNA is often compared to a "ziper." Why?

Answer 1

DNA replication is semi-conservative, ie. one half of the parent duplex is transmitted to each of the daughter cells during cell division. Replication begins at the site of origin called "Oric" site. Two enzymes DNA gyrases and DNA helicasesbind to the origin points and induce the unwinding of complementary strands of DNA double helix. Another protein called "single stranded binding protein" bind to single stranded region and keep them in single stranded condition. An enzyme called "primase" initiates transcription of the strand at 5'-3' direction. So the 3' -OH end of this primer RNA ( which initiated DNA synthesis) provides the initiation point for DNA polymerase for the sequential addition of deoxyribonucleotides. DNA Polymerase enzyme progressively adds deoxyribonucleotides to the free 3-OH ends of this growing polynucleotide chain so that the replication of the 3' - 5' strand is continuous ie. the growth of the new strand is in 5'-3' direction. The DNA polymerase is the prime replicase responsible for replication , editing or proof reading and for the removal of RNA primers after the DNA strand synthesis. Then DNA ligase seals the fragments of the lagging strand into a continuous polynucleotide. So because of this mechanism of unwinding and closing themselves like a ZIP it is compared to a ZIPPER.

Answer 2

the dazzling answer is A right here explains why: A. using fact it particularly is the only actual fact out of the 4 statements. B. fake using fact Glucose is something that's produced AFTER protein synthesis C. fake. Its any different way around, DNA is double-stranded D. fake. the two have phosphate communities, using fact RNA is in basic terms unmarried stranded DNA

Answer 3

Every person gets there DNA passed down from their parents. This can happen whenever the zipper gets unzipped.

Answer 4

It can also be "unzipped," much like a zipper, so it's not just the appearance but the function during DNA duplication.

Answer 5

Because it looks like a zipper.

See the picture at:
http://en.wikipedia.org/wiki/Dna