What are the two main secondary structures of proteins?

Alpha helices and Beta pleated sheets. 

UY

Related Biology A Level answers

All answers ▸

What is the difference between cyclic and non-cyclic photosynthesis?


What are the three main properties of the genetic code?


What is the sliding filament theory of muscle contraction?


The genotypes of 2 guinea pigs, for 2 traits are represented as AABB and aabb. The guinea pigs are mated and the offspring eventually mate with eachother. Of the second generation, what genotypes would be phenotypically different from the originals?