TLS Online TPP Program

#Question id: 24225


Choose the incorrect option

#Biochemistry
  1. There are two kind of pyruvate kinase 1. Liver isozyme (L form), 2. Muscle isozyme (M form)
  2. The liver isozyme (L form) is also regulated hormonally by glucagon. Glucagon to PKA mediated phosphorylation inactivate Pyruvate Kinase L.
  3. The muscle isozyme (M form) PK is not affected by this phosphorylation mechanism.
  4. Glucagon increases the cellular level of fructose 2,6 bisphosphate, stimulating glycolysis and inhibiting gluconeogenesis.
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TLS Online TPP Program

#Question id: 1399

#Biochemistry

Loss-of-function mutations in which of the following genes typifies colorectal carcinomas?

a. myc              b. K-ras                       c. p53              d. APC

TLS Online TPP Program

#Question id: 1399

#Life Sciences

Loss-of-function mutations in which of the following genes typifies colorectal carcinomas?

a. myc              b. K-ras                       c. p53              d. APC

TLS Online TPP Program

#Question id: 1400

#Biochemistry

Which property is shared by malignant tumor cells and transformed cells in culture?

a. reduced growth factor requirement                        b. attachment-dependent growth

c. loss of actin microfilaments                                    d. altered morphology

TLS Online TPP Program

#Question id: 1400

#Life Sciences

Which property is shared by malignant tumor cells and transformed cells in culture?

a. reduced growth factor requirement                        b. attachment-dependent growth

c. loss of actin microfilaments                                    d. altered morphology

TLS Online TPP Program

#Question id: 1401

#Biochemistry

Which of the following are proto-oncogenes?

a. fos               b. myc             c. p53              d. ras               e. Rb

TLS Online TPP Program

#Question id: 1401

#Life Sciences

Which of the following are proto-oncogenes?

a. fos               b. myc             c. p53              d. ras               e. Rb