The two strands must be separated like the two sides of a zipper, by breaking the weak hydrogen bonds that link the paired bases.
<u>Explanation:</u>
- A double helix structure formed by two polypeptide chains is separated like the two sides of a zipper. A zipper is formed by breaking the weak hydrogen bonds that link the paired bases. During replication, an enzyme "Helicase" travels down the DNA and splits the chain and it forms 2 separate strands.
- The two DNA strand which has the same sequence must be separated like the two sides of a zipper by breaking weak hydrogen bases. During base pair-rule, the strand are unzipped and each strands is copied.
Answer: -
Rutherford and Soddy's research involved:
3)The theory that uranium successively disintegrated to lead
Radioactivity involves conversion of one atom of an element into another by particle decay or radiation. They stated the disintegration theory of radioactivity, also discovering a large number of radioactive elements.
They both got Nobel prizes as well.
YOUR ANSWER
Atoms form chemical bonds to satisfy the <span> ⇒ octet</span> rule and to become <span> ⇒ stable</span>.
Answer: Substance B has stronger bonds, and it takes more energy to undergo a phase change.
Explanation:
Substances with higher boilings have stronger intermolecular forces, and thus require more energy for phase changes to occur.