DNA replication. Computer artwork of a strand of DNA (deoxyribonucleic acid) splitting and forming two identical copies. DNA consists of two strands (white) of sugar phosphates forming a double helix (spiral). The two strands are held together by bonds between their nucleotide bases (coloured bars). There are four nucleotide bases,but they pair in only two combinations (here,blue-red and green-yellow): adenine to thymine,and cytosine to guanine. Hence each DNA strand is a complementary copy of the other. As the original strand splits,this complementary base chemistry causes a reverse copy to assemble next to each half,reforming the original DNA strand. The nucleotide base sequence is the genetic code. DNA is stored in cell nuclei | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Pasieka, Alfred |
Bildgröße: | 5000 px × 3750 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |