Which type of interaction stabilizes the alpha (α) helix and the beta (β) pleated sheet structures of proteins?
a) hydrophobic interactions
b) nonpolar covalent bonds
c) ionic bonds
d) hydrogen bonds
e) peptide bonds

Ayoung boy has been found and police are trying to locate his family they take a dna sample from him and begin collec dna samples from families who have missing children if police use dna samples only from the fathers, which type of dn technology can they use to identify the boy's parent? y-chromosome analysis omtdna (mitochondrial dna) analysis vntrs (variable tandem repeats) o pcr (polymerase chain reaction) analysis

Long term exposure to waves can cause sunburns and skin cancer.

Match each description of an object’s motion with the position-time graph that represents it. not moving moving with constant speed speeding up slowing down