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TLS Online TPP Program

#Question id: 1086

What is the most likely mechanism by which testosterone functions inside a cell?

#XL - Q Biochemistry

  1. It acts as a signal receptor that activates tyrosine kinases.

  2. It binds with a receptor protein that enters the nucleus and activates expression of specific genes.

  3. It acts as a steroid signal receptor that activates ion channel proteins in the plasma membrane.

  4. It coordinates a phosphorylation cascade that reduces spermatogenesis.

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TLS Online TPP Program

#Question id: 2925

#XL - T Zoology

Mitotic cyclin levels in early Xenopus embryos are regulated by:
TLS Online TPP Program

#Question id: 2926

#XL - T Zoology

Given below are some of the Mechanisms, checkpoint proteins and their functions. 

Mechanism (Column I)Kinase protein (Column II)Function (Column III)
A. Mitotic exit networki. Cdc7a. Inhibits cell proliferation
B. Septation initiation networkii. Hippob. Exit from mitosis and Cytokinesis
C. Hippo pathwayiii. Cdc15c. Cytokinesis

Which of the following match is correct?
TLS Online TPP Program

#Question id: 2927

#XL - T Zoology

Site-directed mutagenesis of Tyr-15 to Phe in cdc2:
TLS Online TPP Program

#Question id: 2929

#XL - T Zoology

Exit from mitosis depends upon the degradation of:
TLS Online TPP Program

#Question id: 2930

#XL - T Zoology

The S. cerevisiae homolog of Xenopus MPF is:
TLS Online TPP Program

#Question id: 2931

#XL - T Zoology

Which of the following is a substrate of Cln3-Cdc28?