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TLS Online TPP Program

#Id: 7751

Ranks the following in increasing atomic radius

S, Mg, Al

S: 16-10 +6

Mg: 12-10 = +2

Al: 13-10 +3

So: S < AlMg

#Section 2: General Biology #Structure of atoms #Part B Pointers
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TLS Online TPP Program

#Id: 8528

#Section 3: Genetics, Cellular and Molecular Biology

Polyglutamylation has a key role in the beating of cilia and flagella
TLS Online TPP Program

#Id: 8527

#Section 3: Genetics, Cellular and Molecular Biology

Kinesin-1 associates preferentially with detyrosylated and acetylated microtubules.
TLS Online TPP Program

#Id: 8526

#Section 3: Genetics, Cellular and Molecular Biology

Polyglutamylation and polyglycylation are likely mutually exclusive, so they would not normally occur at the same time & both can enhance microtubule stability,
TLS Online TPP Program

#Id: 8525

#Section 3: Genetics, Cellular and Molecular Biology

Detyrosylated microtubules are more stable, because they are more resistant to depolymerization by kinesin-13 and related proteins.
TLS Online TPP Program

#Id: 8524

#Section 3: Genetics, Cellular and Molecular Biology

Detyrosylation 
tyrosine can be removed by a carboxypeptidase, where it sequentially removes the C-terminal tyrosines from α-tubulin subunits. 
TLS Online TPP Program

#Id: 8523

#Section 3: Genetics, Cellular and Molecular Biology