What is the T-cell ligand binding B7 on a professional antigen-presenting cell?

TLS Online TPP Program

#Question id: 2719

#SCPH05 I Biotechnology

The distinct zig-zag appearance of the chromatin fibre is due to ____________

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#Question id: 18683

#SCPH01 Biochemistry

Eukaryotic mRNA can be separated by using 

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#Question id: 14103

#I Life Science/ Life Sciences Group – I-V

GenBank, the nucleic acid sequence database is maintained by

TLS Online TPP Program

#Question id: 8929

#SCPH28 | Zoology

An obsolete taxon, the ʺRadiata,ʺ included all phyla whose adults had true radial symmetry. Today, the ʺRadiataʺ is more correctly considered to be

1. a clade.

2. a grade.

3. monophyletic.

4. paraphyletic.

5. polyphyletic.

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#Question id: 667

#SCPH05 I Biotechnology

Which represents the backbone of a protein?

Note: R = amino acid side chain

N = nitrogen

Cα = alpha carbon

C = carbonyl carbon