Answer:
Option (d).
Explanation:
DNA is the genetic material of all the organism except some viruses. DNA is composed of nitrogenous base, deoxyribose pentose sugar and the phosphate group.
DNA replicatese by semi-conservative mode of replication in which one the daughter DNA consists of one newly synthesized strand and one parental strand. This mode of replication was explained by Messelson and Sthal experiment. The cells from 15N medium are transferred to 14N medium the band of intermediate density was observed. The daughter DNA consists of one 15N DNA strand and one 14N DNA strnd. This strand undergo replication in the 14N medium. This time one low density DNA band ( contains 14N - 14N DNA strand) and one intermediate density band ( 14N-15N DNA).
Thus, the correct answer is option (d).
In doing these exercises, this is likely to increase the response of the parasympathetic nervous system in which results of making the heart slow and as well as the respiration rate with less muscular tension. The parasympathetic nervous system is the one responsible for conserving energy that makes the heart rate slower, increase the activity of the gland and intestinal activity and as well as relaxing the muscles.
False. The bigger it is, the heavier it is, and gravity would pull it down faster.
Enzymes can be denatured by irregular PH. Meaning that they can change shape. Enzymes rely on their shape in order to function so if their shapes change because of the PH then the active sites don't fit anymore and they enzymes wont work.
Pocket gophers<span> and </span>their<span> ecological cognates worldwide </span>have<span> profound impacts on </span>ecosystems<span>, from consuming vegetation to altering the soil physically. The rodents excavate vast burrow systems and deposit tailings in abandoned tunnels and on the ground surface.</span>
