Who discovered that DNA has a double-helical structure? a. Mendel b. Watson and Crick c. Punnett d. Morgan e. Sutton and Boveri Double-Helix: This is the structure of DNA. It means that there are two chains of nucleotides that are ...
根据Rosalind Franklin (1920—1958)部分的Rosalind Franklin was born in London in 1920.Franklin's main contribution to evolution came in the form of helping discover the structure of DNA.(罗莎琳德•富兰克林1920年出生于伦敦。富兰克林对进化的主要贡献是帮助发现了DNA的结构。)可知,罗莎琳德•富兰克林...
James Shapiro and Ray Rajotte In 1921, Canadian researcher Frederick Banting and colleagues discovered insulin, providing the first treatment for people with type I diabetes—a discovery that earned him a Nobel Prize. It's only fitting, then, that nearly 80 years later the next leap forward in...
the darkness foretells a plot of global level destruction the likes of which the human race has never seen before. It’s up to Alex to try and stop it before it’s too late.