DNA replication. Coloured transmission electron micrograph (TEM) of human DNA (deoxyribonucleic acid, orange strands) from a HeLa cancer cell, showing a stage of DNA replication. At centre is a replication 'bubble', where the DNA has unwound into two single strands. Normally, DNA consists of two tightly wound spiral strands. During the process of replication, a 'bubble' region forms which enlarges to form a Y-shaped molecule termed a replication fork. It is here that daughter strands form as the parent DNA acts as a template for the construction of a new matching strand. In this way the sequence of bases (or genetic information) along the DNA molecule is replicated.
px | px | dpi | = | cm | x | cm | = | MB |
Details
Creative#:
TOP26544422
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
N/A
Right to Privacy:
No
Same folder images: