Multiple Choice QuestionsWhich one of the following is wrong for meiosis?
It leads to formation of sister chromatids
It occurs in diploid cell
It occurs in haploid cell
It occurs by splitting of centromeres and separation of sister chromatids
Which one of the following combination of all three fatty acids are essential for human beings?
Oleic acid, linoleic acid and linolenic acid
Palmitic acid, linoleic acid and arachidonic acid
Oleic acid, linoleic acid and arachidonic acid
Linoleic acid, linolenic acid and arachidonic acid
The epithelium found in the inner linings of stomach and intestine is
columnar
squamous
stratified
pseudostratified
A.
columnar
The columnar epithelium is found in the lining of stomach and intestine and help in secretion and absorption. It is composed of a single layer of tall and slender cells.
The squamous epithelium is made of a single thin layer of flattened cells with irregular boundaries. They are found in the walls of blood vessels and air sacs of lungs.
Stratified epithelium are closely packed sheets of epithelial cells arranged in layers over the external surface of the body and lining mostof the hollow structures like alveoli and oesophagus.
Pseudostratified epithelium is a special type of simple epithelium that consists of a falsely stratified single layer of epithelial cells resting on a basement membrane.
Which one of the following cocci appears like grapes under microscope?
Streptococci
Diplococci
Staphylococci
Pneumococci
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