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TLS Online TPP Program

#Question id: 1739

Cross-linking of B-cell surface receptors:

#SCPH01 Biochemistry

  1. Is a characteristic feature of thymus-dependent antigens

  2. Lowers the intracellular Ca2+ concentration

  3. Rapidly phosphorylates the Ig-α and Ig-β chains of the surface Ig receptor

  4. Requires contiguity of two B-cell epitopes of different specificity on the same antigen molecule

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TLS Online TPP Program

#Question id: 9162

#SCPH28 | Zoology

If the direction of Earth's rotation reversed, the most predictable effect would be ________.
TLS Online TPP Program

#Question id: 7761

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

Correct sets of genes are well known to be involved in aging and its prevention, and each set appears to be conserved between phyla and even kingdoms. 
a. DNA repair enzymes
b. proteins of the insulin signaling pathway
c. proteins in the mTORC1 signaling pathway
d. chromatin remodeling enzymes
TLS Online TPP Program

#Question id: 22938

#SCPH28 | Zoology

Genes that regulate flowering, have different transcription factors and functions:
 
Choose correct match:
TLS Online TPP Program

#Question id: 8705

#SCPH28 | Zoology

If you were using cladistics to build a phylogenetic tree of cats, which of the following would be the best outgroup?
TLS Online TPP Program

#Question id: 18682

#SCPH01 Biochemistry

Which technique is shown in given representation