Answer:
Option (a), (c), and (d).
Explanation:
The DNA is the genetic material of almost all the living organisms but in case of some viruses RNA acts as the genetic material. The DNA requires the binding of proteins and factors for the proper functioning of the cellular system.
The DNA and protein interaction is bounded by non covalent interactions as these interactions are not permanent in nature. The non covalent interaction include the hydrogen bonding, vander walls and ionic interaction. The covalent interaction is the strongest interaction present in nature.
Thus, the correct answer is option (f).
Cancer is a mutation of multiple cells through the cell cycle. cancer doesn’t only effect one cell, but effects many
<h2>Heteroduplex DNA</h2>
Explanation:
With respect to double strand break repair, heteroduplex DNA can be formed when broken strands invade non sister chromatids
- Heteroduplex DNA is formed during homologous genetic recombination
- Holliday junction is formed during the break model of homologous recombination by break in DNA and strand invasion,each invading strand joins to the broken end of other DNA molecule,creating a Holliday junction
- Two types of cleavage occurs in this type of junction-horizontal and vertical cleavage
- Cleavage in vertical plane produces cross over recombinant consisting of 2 heteroduplex DNA
Answer:
The correct answers are: Dilution factor = 250 and concentration of DNA in undiluted sample = 2.5 μg/μl.
Explanation:
- Volume of DNA taken = 2 μl.
- Volume of added water = 498 μl.
- Total volume of the sample = 2 μl + 498 μl = 500 μl.
- Dilution factor =
- A₂₆₀ of the given sample is = 0.2.
- We know that 50 μg/ml concentration of pure double stranded DNA gives an absorbance, A₂₆₀ = 1.
- Again, Concentration of DNA(µg/ml) =
µg/ml. - =
μg/ml. - In order to convert it into μg/μl, we have to divide the above value by 1000, hence we get,
μg/μl.
