Enzymes speed up chemical reactions. Which statement correctly identifies the function of the enzymes involved in DNA replicatio
n? A: Helicase adds hydrogen bonds to the template strand DNA polymerase breaks nitrogen bases
B: Helicase adds nitrogen bases to the template strand, DNA polymerase breaks hydrogen bonds
I
C : Helicase breaks nitrogen bases in the template strand. DNA polymerase adds hydrogen bonds
D : Helicase breaks hydrogen bonds in the template strand DNA polymerase adds nitrogen bases
D: Helicase breaks hydrogen bonds in the template strand, DNA polymerase adds nitrogen bases
Explanation:
DNA replication is the process whereby DNA content is duplicated. This process of DNA replication is carried out with the aid of certain enzymes. Two of those important enzymes as stated in this question are DNA Helicase and DNA polymerase.
- DNA Helicase is the enzyme that breaks the hydrogen bonds that holds the two DNA strands in the molecule together. This separates the double-stranded DNA into two single strands.
- DNA polymerase is another enzyme that which carries out the nucleotide synthesis. DNA adds nitrogen bases to the new DNA strand based on what it reads on the DNA template
Through phosphorylation, Cdks signal the cell that it is ready to pass into the next stage of the cell cycle. As their name suggests, Cyclin-Dependent Protein Kinases are dependent on cyclins, another class of regulatory proteins. Cyclins bind to Cdks, activating the Cdks to phosphorylate other molecules.
