Answer:
The plate that contains Kanamycin in it will have growth of colonies of bacteria that have been transformed with the plasmid which has the kanamycin-resistant gene. The bacterial cells that did not get transformed with this plasmid will not be able to grow into colonies in the presence of kanamycin.
While the negative control, a plate with any other antibiotic,such as ampicillin or tetracyclin, added to it will not allow growth of any bacteria on it.
Hope that answers the question, have a great day!
The population of the ground squirrels will be limited by the population of the hawks. The population of the hawks, thus, will be a limiting factor for the population of the ground squirrels. The Hawks are the birds of prey that feeds on squirrels. With the increased number of hawks in the same area as them will put these squirrels in danger. The population of the tree squirrels, however, will have no affect on the population of the ground squirrels. The genetic variability and breeding season are not limiting factors for their population either.
Hence, the correct answer is 'option B - a population of hawks'.
Answer : The reason is Osmosis.
Explanation :
Osmosis : It is a type of process in which the movement of particles occurs from its high concentration to low concentration through the selective semi-permeable membrane.
From the given image we conclude that the molecule A diffuses across the membrane but molecule B do not due to the osmosis. That means the selective semi-permeable membrane allows only molecule A through it.
Hence, the reason is Osmosis.
Chromatin
is composed of a DNA and a protein. The DNA is a double helix in the cell
nucleus packaged by histones, a special type of protein. Together they form the
chromatin with a basic structural unit called nucleosome. The chromatin's functions are:
a. to
package DNA into smaller volumes to fit in the cell.
b. to
allow mitosis by reinforcing the DNA macromolecule
c. to
prevent damaging of the DNA
<span>d.to
control gene expression and DNA replication</span>
