The three components of a nucleotide.
What is a nitrogenous base, the sugar deoxyribose, and a phosphate group?
Base pairing rules. (give one)
What is adenine -> thymine?
What is Guanine -> cytosine ?
Y-shaped region where DNA strands are elongating
They’re protiens responsible for DNA packing
What are Histones?
The direct manipulation of genes.
What is genetic engineering?
A bacteriophage.
What is a type of virus that infects bacteria?
Scientists that concluded semiconservative model.
Who is Meselson and Stahl ?
DNA polymerases can only add nucleotides to what end ?
What is 3' prime end ?
Certain protiens cause the chromatin to tightly pack together
What is known as supercoil?
The determination of the order of nucleotide bases in gene or DNA synthesis.
What is DNA Sequencing?
The scientist that used X-ray crystallography to study molecular structure of DNA that Watson and Crick ultimately stole to find the 3D structure of DNA.
Who was Rosalind Franklin?
Mandatory elongation of DNA
what is 5' to 3' prime ?
Sequence changes that may become permanent, passing on to next generations are called
what are mutations ?
A Euchromatin
What is accessible to the machinery in the cell?
The first step of the PCR, the heating up of DNA to separate the two strands.
What is denaturation?
Given that the DNA of a certain fly species consists of 27.3% adenine and 22.5% guanine, use Chargaff’s rules to deduce the percentages of thymine and cytosine.
What is the DNA of this fly species should consist of about 27.3% thymine and 22.5% cytosine.
Segments of strands containing damage is cut out of DNA by
What is Nuclease ?
New DNA strand starts from 3’ end of
What is a RNA primer ?
The outer strand
What part of the the double helix is negatively charged ?
The 2 main and useful purposes of gene cloning.
What are amplification (amplifying) and protein production?
Change in genotype and phenotype due to assimilation of foreign DNA
What is transformation?
DNA polymerase synthesize what strand continuously
What is a leading strand ?
Nucleotide added to template consist of sugar attached to base and 3 phosphate groups called
What is dATP ?
A looped domain
What is further scaffold to create a metaphase chromosome?
Fragments that can form hydrogen bonds with complementary sticky ends that have cut by the same enzyme.