The correct matching of enzymes and their role in the process of DNA replication is A- 3, B- 5, C-1, D-2 and E-4.
Replication is the process of synthesis of two indentical copies of DNA from a single DNA molecule. It is catalyzed by a set of enzymes with the following function-
A. RNA primase synthesizes an RNA primer (short sequence of RNA) on the lagging strand complementary to the single stranded DNA which acts as template during DNA replication.
B. Ligase is involved in joining the okazaki fragments on the lagging strand together and sealing the nicks of the DNA strand.
C. Helicase separates the two DNA strands at the replication fork.
D. Polymerase synthesizes the complementary daughter strand by adding nucleotides to DNA.
E. Topoisomerase relaxes the highly coiled DNA by creating nick ahead of the replication fork in the phosphate backbone of DNA strands.
C earth’s population will increase quickly
Improve health
False
Using genetic principles to calculate
The atria and ventricles work together, alternately contracting and relaxing to pump blood through your heart. ... The electrical activity spreads through the walls of the atria and causes them to contract. This forces blood into the ventricles. The SA node sets the rate and rhythm of your heartbeat.
Answer: Prepare to deliver the baby on-scene.
Explanation:
Birth crowning is a condition occurs during the period of gestation. In this baby's head starts emerging after each contraction from the birth canal after the second stage of labor. In this process the uterine muscle relaxes and tightens to help the newborn to come out of the birth canal.
According to the given condition, a preparation of delivery of the baby on the scene is preferred to avoid the negligence and delay. To protect the life of mother and child early action is required.
