LABORATORY REVIEW
MOLECULAR BIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
The nucleotides are added to exactly match the sequence on the original strand
|
|
|
the nucleotides that are in the greatest supply in the cell are added first
|
|
|
the nucleotides are added based in the complementary base pairing rules
|
|
|
the nucleotides are added randomly
|
Detailed explanation-1: -One of the key molecules in DNA replication is the enzyme DNA polymerase. DNA polymerases are responsible for synthesizing DNA: they add nucleotides one by one to the growing DNA chain, incorporating only those that are complementary to the template.
Detailed explanation-2: -Answer and Explanation: The correct answer is option c because the newly synthesized strand during DNA replication is complementary to the template strand and identical to the coding strand, the other strand of the original DNA.
Detailed explanation-3: -DNA replication is the process by which the genome’s DNA is copied in cells. Before a cell divides, it must first copy (or replicate) its entire genome so that each resulting daughter cell ends up with its own complete genome.
Detailed explanation-4: -DNA synthesis requires a primer usually made of RNA. A primase synthesizes the ribonucleotide primer ranging from 4 to 12 nucleotides in length. DNA polymerase then incorporates a dNMP onto the 3’ end of the primer initiating leading strand synthesis.
Detailed explanation-5: -Which of the following statements best describes the overall process of DNA replication? A double stranded DNA molecule is replicated to form two double-stranded DNA molecules, each containing one parent strand and one new strand.