The cytoplasm fills the cell and is surrounded by the cell membrane. :)
Phenotypic variations in genetically identical organisms that grow in the same controlled environment may be due to mutation.
<h3>Mutation</h3>
This refers to a sudden change to the DNA sequence of living organisms.
When the DNA base sequence of organisms changes, the effect is shown in the morphology of organisms.
For organisms that are genetically identical but grow in different environments, phenotypic variations might exist as a result of environmentally acquired traits during the struggle to adapt to their environments.
In the same environment, however, genetically identical organisms are not expected to be phenotypically different, unless a mutation to the DNA of one has occurred.
More on mutation can be found here: brainly.com/question/17106056
Answer:
number 1 its 25 number 2 its 10000
Explanation:
Answer:
EtBr inserts between the stacked bases in the DNA double helix.
Explanation:
- EtBr is used for visualizing DNA bands as it fluoresces under the UV illumination.
- EtBr is an aromatic compound that is capable of inserting itself between the stacked bases of the DNA double helix.
- The hydrophobic environment around the base pairs where the EtBr intercalates is responsible for the fluorescence. As the EtBr molecule intercalates between these base pairs the cation of EtBr sheds the water molecules associated with it and this causes it to fluoresce under UV light as water is a quencher of fluorescence.
Answer:
specificity
Explanation:
Adaptive immunity or specific immunity refers to the defense mechanisms of the body against specific invading agents. Adaptive immunity exhibits specificity and memory, the features not exhibited by innate immunity. The specificity of immune system serves the ability of the immune cells to identify specific pathogens or foreign molecules and produce an immune response against them.
It also involves distinguishing self from nonself molecules. The B cells and T cells have specific receptors that recognize and bind to specific antigens only and produce an immune response against them only while not responding to the other antigens.
