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TLS Online TPP Program

#Id: 7292


C4 leaf has two distinct chloroplast-containing cell types: mesophyll and bundle sheath (or Kranz, German for “wreath”) cells



#Unit 6. System Physiology – Plant #Regulation #Part B Pointers
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TLS Online TPP Program

#Id: 650

#Unit 3. Fundamental Processes

Two major products of UV absorption by pyrimidines (thymine and cytosine) are pyrimidine hydrates and pyrimidine dimers.

TLS Online TPP Program

#Id: 651

#Unit 3. Fundamental Processes

Ames Test is used to measure carcinogenicity and mutagenicity of any chemical mutagen.

TLS Online TPP Program

#Id: 652

#Unit 3. Fundamental Processes

The Ames test uses a strain of S. typhimurium that is mutant for the operon responsible for the biosynthesis of the amino acid histidine.

TLS Online TPP Program

#Id: 653

#Unit 3. Fundamental Processes

A more potent mutagen translates into a greater number of revertant colonies.

TLS Online TPP Program

#Id: 654

#Unit 3. Fundamental Processes

Reversal of the mutation can only be done by same mutagen which created forward mutation.

TLS Online TPP Program

#Id: 655

#Unit 3. Fundamental Processes

The telomere is absolutely required for the stability of the chromosome end.

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