Answer:
The correct answer is B. DNA replication is semiconservative.
Explanation:
With this experiment, Messelson and Stahl determined that there was a pattern in replication that left one original strand and added a new one in each case. Therefore, after two rounds, there will be two copies with "original" information exclusively and two copies with mixed strands or hybrids.
I cannot find the propositions if it is a MCQ, so I will tell what a bacterial mutualism is:
Mutualism is an exchange between species (two or more) in which the mixed organisms profit from this exchange. Unlike commensalism, the associated species adapt, because the modification of one can affect the survival and reproduction of the affiliated species.
Many mutualistic bacteria live and develop in us, for example, the intestinal flora synthesizes vitamin K, a vitamin that is necessary for the absorption of our food. This same intestinal flora also hinders the proliferation of pathogenic bacteria as well as that of commensal bacteria potentially dangerous.
Answer:
The IUPAC name for iso-pentane is
2,2-dimethylpropane
It's molecular formula is
CH3C(CH3)2CH3
Hope this helps
Answer:
GLUCOSE !!! Also known as C₆H₁₂O₆
The electromagnetic spectrum is made up of seven types of waves, they are: radio, microwave, infra red, visible lights, ultraviolet, X ray and gamma ray. The electromagnetic waves have both electric and magnetic properties and they can travel through vacuum. The waves have different properties and diverse uses.
The part of the electromagnetic spectrum that can penetrate all human skin and soft tissues is X RAY. X ray have short wavelength and it can penetrate soft tissues such as skin and muscles. Because of this property, it is typically used in the health care system to take X ray pictures of bones; the pictures help the health care providers in their diagnosis.