Answer:
Confocal Microscope is used for cell structures in the micrometer range while Electron microscope is used in the range of nanometers
Explanation:
The confocal microscope makes use of optical sectioning in order to achieve a thin section with the sample still intact. It is used for cells or structures inthe micrometer range such as the lisosomes. The lisosomes in a cell can be tagged with a flourescence dye and they would be seen using the confocal microscope. They provide a high-resolution image with all areas in focus throughout the field of view
The Electron Microscope on the other hand requires real sections, it makes use of transmitted electrons (electrons which are passing through the sample) to create an image. It is used in a range of nanometers, with it, you can view the nanoparticles inside a lisosome.
Answer:
Polypeptides are composed of amino acids, and we know amino acids are differently charged, have different R groups, and also have different isoelectric points. Depending on different isoelectric points and charged groups, the polypeptides can be separated and because a protein has its lowest solubility on its isoelectric point.
So in this question,
(a) (Lys-Ala)3 ; this is highly positively charged (polar) at pH 7 than (Gly)20 which is uncharged except for the amino and carboxyl terminal.
(b) (Glu)20 ; it is highly negatively charged at pH 7 whereas (Phe-Met)3 is much less polar and hence less soluble.
(c) (Asn-Ser-His)5 ; at pH 3, because in (Ala-Asp-Gly)5 the carboxylate groups of Asp residues are partially protonated and neutral, whereas in (Asn-Ser-His)5 , the imidazole groups of His residues are fully protonated and positively charged.
(d) (Asn-Ser-His)5; at pH 6.0; both polymers have polar Ser sidechains, but (Asn-Ser-His)5 also has the polar Asn side chains and partially protonated His side chains.
Explanation:
Answer:
B
Explanation:
Cancer is essentially a disease of mitosis - the normal 'checkpoints' regulating mitosis are ignored or overridden by the cancer cell.
Answer: yes
Mango Love
While you don't need two trees to get a fruit crop, you do need both male and female flower parts. ... Generally, about a quarter of the mango flowers on one tree will contain male reproductive organs, while the other flowers contain both male and female reproductive organs, which is termed hermaphroditic.
Explanation: