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Most RNA molecules are single-stranded but an RNA molecule should hold regions that can form complementary base pairing where the RNA strand loops back on itself in the above figure. If so, the RNA will have few double-stranded regions. The Ribosomal RNAs (rRNAs) and transmit RNAs (tRNAs) exhibit substantial secondary structure, as do some messenger RNAs (mRNAs).
figure: An example of self-complementarity in RNA, forming an internal double-stranded region; hydrogen bonding between bases is shown by the symbol •.
Q. Explain microbiology of water? Ans. Unlike air, natural waters contain their natural flora, as well as, microorganisms from soil and possibly from animals and se
Female Gametophyte The development of a female gametophyte is initiated with the enlargement of one of the megaspores (usually the one close to the chalaza in a linear tetrad)
Q What is the diffusion? Diffusion is the spreading of substance molecules from a region where the substance is further more concentrated to another region where it is less con
Why does the recombination frequency of genes vary with the distance between them in the chromosome? The farther the distance among the loci of two genes in a chromosome the hi
Dinoflagellates are single-celled to colonial protistans characterized by the two flagella, one girdling cell and the other trailing the cell. Some of the dinoflagellates exist in
Eucaryotic cell structure All eucaryotic cells have a cytoskeleton made up of a network of protein filaments (Figure shown below). This network gives the cell its shape, capac
Nature of Light - Floral Induction Red light promotes flowering in short day plants. If the dark regime of a short day plant is interrupted by red light, flowering is inhibite
Micrographia is abnormally small, cramped handwriting and/or the progression to continually smaller handwriting. This is one of the symptoms of Parkinson''s disease.
Locomotion,nutrition and reproduction in ptotozoa
Q. What is Alzheimer's disease? The Alzheimer's disease is a degenerative disease of the central nervous system in which the patient has progressive dementia and alteration of
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