Answer:
1.Plant absorbing water from the soil.
Explanation:
Osmomsis occurs by the movement of a water from a region of higher concentration of water molecules to a region of lower concentration of water molecules, through a semi permeable membrane,
<em><u>OR</u></em>
It occurs as a result of movement of substance molecules from a region of lower concentration to a region of Higher concentration of the substance.
<em><u>Note</u></em><em><u>:</u></em> The higher the concentration of the substance molecules,the lower the concentration of water molecules.
The answer is;
a. add electric current.
b. add buffer solution
The process of gel electrophoresis taps on the property of net charges of molecules to ensure that they travel up the gel. Additionally, the buffer acts as the mobile phase for the molecules and also give molecules net charge as they travel through the gel. It is until the molecules reaches an isoelectric point,where the molecule has zero net charge, that they stops moving through the gel. This is how bands are formed.
Answer: 4 Guanines
Explanation: Following Chargaff's ratio that describes the ration of purines to pyrimidines as 1:1, if there are 23 purines, it follows that there should be 23 pyrimidines; 15 Thymines should therefore be hydrogen bonded to 15 Adenines by complementary base pairing.
We are then left with 8 nucleotides composed of guanines and cytosines in complementary base pairs. This means that half that number (4) should be guanines and the rest cytosines.
Answer:
C.
Event A represents volcanic eruption and Event B represents creation of mountain ranges.
Sorry if it's wrong :(
