A = Phosphate group
B = Deoxyribose sugar
C = Nitrogenous base
DNA?, because everyone’s DNA is unique and different in its own way
Answer:
The lunar phases gradually change over the period of a synodic month (about 29.53 days), as the orbital positions of the Moon around Earth and of Earth around the Sun shift. The Moon's rotation is tidally locked by Earth's gravity; therefore, most of the same lunar side always faces Earth.
Explanation:
Answer:
c.
Explanation:
because is an interval of geological time from about 252 to 66 million years ago.
Answer:
a. can produce many exact copies of segments of DNA
Explanation:
PCR refers to polymerase chain reaction that replicates a gene or a DNA segment into multiple copies. For the purpose, primers, the sample DNA template to be amplified, nucleotide monomers and the heat-tolerant DNA polymerase enzyme (<em>Taq </em>polymerase) are mixed.
The heating of the mixture leads to the denaturation of the sample DNA. The mixture is cooled down to allow annealing of the primers to the DNA template which is then amplified by the enzyme <em>Taq</em> DNA polymerase. The reaction mixture is heated to allow denaturation of all the DNA molecules which in turn serve as a template and the process is repeated for several rounds according to the requirement of the copies of the sample DNA.
