The DNA molecule split down the middle, where the bases meet. The bases on each side of the molecule are used as a pattern for a new strand.
Copied from Glencoe LIFE SCIENCE
It's complicated. A short version is that an enzyme (helicase) separates the double stranded DNA at many sites along the molecule, resulting in areas called replication forks. In these areas, DNA polymerases move along each strand, called the leading and the lagging strands, reading the bases as they go along, and place a complimentary base down (A-T and C-G). This goes in a 5' to 3' direction. On the leading strand, which is already oriented 5'-3', the polymerase just chugs along no problem. However, on the lagging strand, which is 3'-5', a polymerase replicates in small patches (called Okazaki fragments) which are then glued together by a ligase.
There's a lot more that goes on - a lot of different molecules which do a lot of different things like proof read the DNA to prevent mutations. But that's a (very, very) brief overview. TELL MORE
how detailed of an answer are you looking for? (and DNA doesnt actually copy itself- it gets replicated, not replicates itself.) To actually answer this question id have to write an essay. Here's a summary;
Deoxyribonucleic acid (DNA) is located in the nucleus of a cell. The nucleus is encased by the nuclear envelope. (like a cell membrane, consisting of a phospholipid bilayer embedded with proteins.) The nuclear envelope has nuclear pores, which allow passage of ribosomes. Ribosomes, along with synthesizing (making/'editing') proteins, transport ribonucleicacid (RNA). mRNA, (messenger rna) enters the nucleus inside the ribosome via the nuclear pore. The DNA splits, and the RNA creates a negative of the coding because of the pairing of the nucleic bases (purines and pyrimidines). It then leaves the nucleus and generally makes proteins by developing a chain of amino acid, sequenced by the nucleic bases.
Hope that makes sense! Let me know if you need more information.
1. DNA unzips
2.free bases come in and attack
3. ttwo new copies are made
The chromosomes duplicate
in the S-Phase
feature of DNA is that it can duplicate it self.
seeds
Well a virus can duplicate many copies of itself by attaching itself to a cell, any cell, and using the cells machinery they inject their DNA and later the cell bursts and copies of the virus come out. When a bacteria duplicates it uses binary fission. Binary fission is when a bacteria splits itself into two and makes to copies of itself. Hope I answered your question.
because the DNA cannot leave the nucleaus. so it creates a duplicate of the DNA so the process of mitosis can carry out
The process in which DNA duplicates itself is called DNA replication. This process is an important factor in biological inheritance.
in the S-Phase
chomosomes
When a cell duplicates, both the DNA and the chromosomes duplicate.
I don't know... Let me know of u find out!
The chromosomes duplicate itself during interphase
chomosomes
it is duplicate
feature of DNA is that it can duplicate it self.
True
True
Helicase enzymes