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DNA Structure, replication, Transcription and translation questions fully solved & updated
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DNA Structure, replication, Transcription and translation questions fully solved & updated
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DNA Structure, replication,Transcription and translation
questions fully solved &
updated(100% accuracy)
DNA Replication - answer the process of making identical copies of DNA
before cell division
central dogma - answer DNA -> RNA -> Protein
DNA helicase - answer An enzyme that unwinds the double helix of DNA
and separates the DNA strands in preparation for DNA replication.
DNA Polymerase - answer "Proof reads", to fix mistakes in DNA, Enzyme
involved in DNA replication that joins individual nucleotides to produce a
DNA molecule
double helix - answer The form of native DNA, referring to its two adjacent
polynucleotide strands wound into a spiral shape.
stages of replication - answer Initiation (RNA primer, then DNA polymerase
attaches) + Elongation (DNA polymerase adds bases)
Primase - answer An enzyme that joins RNA nucleotides to make the
primer using the parental DNA strand as a template.
RNA primer - answer short segment of RNA used to initiate synthesis of a
new strand of DNA during replication
, DNA helicase - answer An enzyme that unwinds the DNA double helix
during DNA replication
Leading strand - answer the new continuous complementary DNA strand
synthesized along the template strand in the mandatory 5' --> 3' direction
Lagging strand - answer A discontinuously synthesized DNA strand that
elongates in a direction away from the replication fork.
semi conservative - answer Each half of an original DNA molecule serves
as a template for a new strand, and the two new DNA molecules each have
one old and one new strand.
deoxyribonucleic acid - answer A nucleic acid molecule, usually a double
stranded helix, in which each polynucleotide strand consists of nucleotide
monomers with a deoxyribose sugar and the nitrogenous bases A T C G;
capable of being replicated and determining the inherited structure of
cell's proteins.
nucleotide - answer long chain of polymers; A subunit of nucleic acids
formed from a simple sugar, a phosphate group, and a nitrogenous base.
adenine - answer A nitrogenous base found in DNA and RNA. It pairs with
thymine in DNA and with uracil in RNA
guanine - answer A nitrogenous base found in both DNA and RNA; pairs
only with cytosine.
thymine - answer A nitrogenous base that pairs with adenine. Found only
in DNA.
cytosine - answer A nitrogenous base found in DNA and RNA; pairs with
guanine
purine - answer A class of nucleotides that includes adenine and guanine.
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