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Batrachospermum :Origin ,strucutre ,Thallus organisation and reproduction

                                              Batrachospermum Occurrence:-   (1) Batrachospermum is fresh water alga.    (2) It is found in clear, cool, and running streams.   (3) Deepwater plants are dark violet or reddish in color. But the shallow-water species are olive green.   (4) The intensity of light changes the color of pigments.   (5) The thallus is attached to the substratum. Vegetative structure  (1) The thallus of an adult plant is soft, thick, filamentous.  (2) It is freely branched and gelatinous.   (3) The central axis is made up of a single row of large cells. Whorls of branches of limited growth        are developed on this axis.  (4) These branches are filamentous and dichotomously arranged.  (5) The main axis is corticated. It consists of a row of elongated cylindrical cells.   (6) It is differentiated into nodes and internodes.   (7) There are two types of branches that arise from the nodes:       Branches of limited growth        Branches of unlimited growth Batra

Mutation-cause,effects and disease


                                   

                               Mutation

Mutation :-

Mutation
Mutation

Mutation could be a permanent modification within the deoxyribonucleic acid sequence that produces up a cistron. 

Mutations direct size from one deoxyribonucleic acid base to a full body modification.
Mutation
Mutation

Types of Mutation :-

         Missense
          Insertion
          Nonesense
          Deletion
   Repet enlargement
   Frameshift mutation

Missense Mutation :-

Misense Mutation
Missense Mutation


This type of mutation could be a modification in one deoxyribonucleic acid nucleotide that resultsin the substitution of 1 aminoalkanoic acid for an additional within the supermolecule created by a cistron.

Insertion Mutation :-

Insertion Mutation
Insertion Mutation

An insertion changesthe range of deoxyribonucleic acid basesin a cistron by adding a bit of deoxyribonucleic acid. As a result, the supermolecule created by the cistron might not operate properly

NONSENSE MUTATION :-

Non-sense Mutation
Non-sense Mutation

       A nonsense mutation is additionally a modification in one deoxyribonucleic acid nucleotide. 

rather than sub - stituting one aminoalkanoic acid            for another, however, the altered deoxyribonucleic acid sequence untimely signalsthe cell to prevent building a supermolecule. 

Thistype of mutation resultsin a shortened supermolecule which will operate improperly or not the least bit.

DELETION :-

Deletion Mutation
Deletion Mutation

A deletion changes the amount of deoxyribonucleic acid bases by removing a bit of deoxyribonucleic acid. 

tiny deletions might take away one or a number of base pairs among a cistron, whereas larger deletions will take away a whole cistron or many neighboring genes. 

The deleted deoxyribonucleic acid might alter the operate of the ensuing protein(s).

REPEAT enlargement :-

 ester repeats area unit short deoxyribonucleic acid sequences that area unit recurrent variety of times in an exceedingly row. as an example, a tri ester repeat is formed of 3-basepairsequences, and a characin ester repeat is formed of 4-base-pair sequences.

 A repeat enlargement could be a mutation that will increase the amount of times that the short deoxyribonucleic acid sequence is recurrent. this kind of mutation will cause the ensuing supermolecule to operate improperly.

FRAMESHIFT MUTATION :-

Framshift Mutation
Framshift Mutation

 this kind of mutation happens once the addition or loss of deoxyribonucleic acid bases changes a gene’s reading frame.

 A reading frame consists of teams of three bases that every code for one aminoalkanoic acid.

 A frame shift mutation shifts the grouping of those bases and changes the code for amino acids. 

The ensuing supermolecule is typically nonfunctional. Insertions, deletions, and duplications will all be frame shift mutations.

DUPLICATION :-

A duplication consists of a bit of deoxyribonucleic acid that's abnormally derived one or additional times. 

This type of mutation might alter the operate of the ensuing supermolecule

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