Answer: A double-stranded DNA molecule is unwound into single strands. Polymerase matches the right nucleotides to the single strand so that each forms a double strand of DNA.
Explanation: During replication, a double-stranded DNA molecule is unwound by an enzyme known as helicase into two single strands of DNA that serve as templates for new strands of DNA.
Then another enzyme known as DNA polymerase matches the free and right nucleotides to the nucleotides on the single DNA strands (templates) to form a double-stranded DNA molecule.
when any liquid that is part of the dilution comes into touch with the solvent liquid to achieve the desired concentration.
Student 1 Smooth Cardiac Skeletal Skeletal
Explanation:
Skeletal muscles are voluntary muscles which contract fast through the strong forces in between its fibers to facilitate the movements of hands, legs, and other bones in the body. The cross striations are due to actin and myosin arranged along the axis of the cell.
Cardiac muscles are involuntary muscles in the heart walls. The contractions are slow with the force being spread along its branched structure so as to facilitate controlled pumping of blood from the heart. Cardiac muscles are partially striated and are branched since actin and myosin are arranged on the cell axis.
Smooth muscles are are involuntary muscles found lining the blood vessels, viscera, skin etc. They aid in visceral content movements, changes the tone of blood vessels, airways according to their diameter. There are no striations because actin and myosin are arranged randomly. Their contractions are very slow due to weak forces.
