Having done some searching myself, I have read a range of answers that, for one kilobase of double stranded DNA, the molecular mass is between 650kDa to 684kDa, with a commonly used average of about 660kDa and a proviso that the exact amount will vary (very) slightly depending on the DNA sequence and the AT to CG ratio.
However, having sat here this afternoon calculating the molecular mass of DNA nucleotide pairs from the chemical formula of double stranded DNA using either the relative atomic weight or the Atomic Mass (assuming the DNA comprises of the most abundant isotope only), I seem to get 1kb of double stranded DNA being about 616kDa (for both atomic weight and mass, assuming CG and AT ratio of 1:1).
Doing the same calculations with 1kb of double stranded RNA gives about 641kDa (for both atomic weight and mass, assuming CG and AT ratio of 1:1).
I considered that there may be some water molecules (H2O) around which I'm not counting, as water is a byproduct of DNA synthesis. To get to the assumed of 660kDa, I would need 2.5 water molecules. As I'm assuming double stranded DNA, i.e. AT or GC pairs, 2.5 may be considered near to the theoretical water release by DNA synthesis of double stranded DNA (1 water molecule per nucleotide, therefore 2 water molecules for double stranded).
However, if you're calculating the molecular mass of a double stranded DNA molecule of more than 1 base, then it should be calculated without the water molecules (ignoring the 2 water molecules "left" at the (potentially) unjoined ends of your chosen DNA which won't significantly change the molecular mass of 1kb). Possibly, people who have worked out 660kDa as a good assumed average have calculated from single nucleotides and neglected to consider the changes the nucleotides undergo when they join to form DNA.
Overall though, I'm a bit stumped as to the exact answer. As I've calculated from the chemical formula directly, I would personally go with the molecular mass of 616kDa, however, as I've never seen it used that low before I wouldn't blame you if you used 660kDa.
A physical map of a genome gives relative positions of genes with distances measured in base pairs. This type of map shows the actual physical locations of genes on a chromosome and their distances from each other. It provides information on the linear order of genes and their physical distances along the chromosome.
The molecular geometry of water is bent due to the presence of two lone pairs of electrons on the oxygen atom, which repel the bonded pairs, causing the molecule to form a bent shape. This is a result of the electron pairs arranging themselves in a way that minimizes repulsion and maximizes stability in the molecule.
No, sigma bonds are formed by the overlap of atomic orbitals, typically between two atoms. Lone pairs are not involved in the formation of sigma bonds. Lone pairs are non-bonding pairs of electrons that are not involved in bonding.
The maximum number of bonds made between adjacent carbons is 3. So the maximum number of electron pairs is 3.
I think this is the answer you are looking for: A hydrogen bond forms between the nitrogen bases Adenine (A) and Thymine (T), and between Cytosine (C) and Guanine (G).
MW of a double-stranded DNA molecule = (# of base pairs) X (650 daltons/base pair) Average weight of a DNA basepair (sodium salt) = 650 daltons
A recipe and a cookbook
The answer will depend on the nature of the lines.
someone answer this
Both pairs are synonyms.
A double bar graph is a graph that uses pairs of bars to compare and show the relationship between data. However, a double line graph is a grid graph that uses pairs of lines to compare and show the relationship between data.
Mb=1000000pb Kb=1000pb 1000kb=Mb
In the number 514482441, the first pair of 3s does not exist, as there are no 3s present in the number. However, if we consider the pairs of digits, the relationship between any two identical digits can be analyzed in terms of their positions. For example, if we look at pairs of identical digits like 4s, we can say they occupy the 5th and 6th positions in the number, showcasing a similar positional relationship that would apply to any other pairs of identical digits, if they existed.
Relationship can also be represented by a set of ordered pairs called a function.
2 pieces of information
In chemical reactions, redox pairs are related because one substance loses electrons (oxidation) while another gains electrons (reduction). This exchange of electrons between the redox pairs allows for the transfer of energy and the formation of new substances.
A coordinate graph is a graph of pairs of numbers that represent real-life situations.