This would be an example of:
C) an insertion mutation.
Notice how the sequence contains the same letters as before, only an A is added to the beginning. Adding extra nucleotides is an example of an insertion mutation, a type of frame-shift also, because the reading frame will be thrown off downstream.
A mutation can occur in DNA too
Answer:
B. A helicase enzyme unwinds the DNA molecule, then corresponding nucleotides are added to the separated original strand forming two separate semiconservative molecules
Explanation:
DNA Replication is an important phenomenon as far as cell division is concerned. It is the process whereby a DNA molecule doubles its content or forms two DNA molecules from one.
In the semi-conservative model of DNA replication, an enzyme called DNA helicase unwinds the double stranded DNA molecule into two single strands. The single strands are then used as template for DNA polymerase to synthesize another molecule of DNA. Hence, two separate DNA molecules comprising of one old strand and one new strand.
Answer: Temperature on monday morning is 319,5K
Explanation: This is an example of Gay Lussac law on gases which states that at constant volume, pressure and temperature are directly related, so if one raises the other one does as well.
The equation that follow the law is :
P1 / T1 = P2/T2 where 1 is the initial pressure and temperature and 2 is the final state.
In this equation, values have to be expressed in atm for pressure and Kelvin for temperature.
The missing value is T2 (monday temperature), so we have to clear it from the equation
T2 =P2.T1/P1
Replacing values:
T2 = 1,073 atm . 338K /1,135 atm
T2 = 319,5 K
