Helicases move along one strand of the duplex and push the opposing strand aside. They either migrate in the 3'-5' or 5'-3' orientation along the DNA or RNA (some can move in either direction).
- Living things need helicases, which are enzymes, to separate the double-stranded DNA in this instance from other nucleic acid strands.
- Helicases accomplish this by severing the hydrogen bonds that link the two strands.
- The DNA double helix's two strands are initially separated by an enzyme known as a DNA helicase.
- Each DnaB helicase winds the parental duplex by encircling one strand of the duplex DNA and moving in the 5′ to 3′ direction with respect to this ssDNA.
- Primers are created on occasion when DnaB interacts with primase.
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Answer:
The order of bonds in increasing order of bond strength would be Ionic, peptide, polar covalent, non-polar covalent hydrogen bond.
Ionic bonds are the strongest bonds which are formed by transferring of valence electrons between different atoms. For example, a bond between sodium and chlorine atoms in NaCl.
A peptide bond is a type of covalent bond formed between a carboxylic group of one amino acid and the amino group of another amino acid. It is provided with extra stability through resonance.
A covalent bond is a type of bond which is formed by the sharing of electrons between two atoms.
They bond strength of these bonds is less than that of ionic bonds and more than that of hydrogen bonds.
Hydrogen bonds are weak bonds formed through electrostatic interactions between a proton present in one molecule and an electronegative atom in another molecule.
Answer:
hydrogen
nitrogen
sulfur
phosphorus
carbon
Explanation:
but methane is the simplest
Answer:
1. There will be no High Cost of construction and maintenance.
2. Some designs of these sea walls might be unattractive.
3. natural processes can take place ... for eg. habitat migration.
Answer:
Acquired (or somatic) mutations occur at some time during a person's life and are present only in certain cells, not in every cell in the body. These changes can be caused by environmental factors such as ultraviolet radiation from the sun, or can occur if an error is made as DNA copies itself during cell division.
Explanation:
