资讯

Hubble celebrates it 35th birthday with four gorgeous new images
In celebration of 35 years spent in orbit around Earth, the Hubble team has released a set of four new images showing the ...
Nature5 年
The Order of Nucleotides in a Gene Is Revealed by DNA Sequencing
Because there are four naturally occurring nitrogenous bases, there are four different types of DNA nucleotides: adenine (A), thymine (T), guanine (G), and cytosine (C). Within double-stranded DNA ...