Practice Questions

TLS Online TPP Program

#Question id: 11544

When a steroid hormone and a polypeptide hormone exert similar effects on a population of target cells, then ________.

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

the steroid and polypeptide hormones must use the same biochemical mechanisms
the steroid and polypeptide hormones must bind to the same receptor protein
the steroid hormones affect the synthesis of effector proteins, whereas polypeptide hormones activate effector proteins already present in the cell
the steroid hormones affect the activity of certain proteins within the cell, whereas polypeptide hormones directly affect the processing of mRNA

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TLS Online TPP Program

#Question id: 10556

#SCPH05 I Biotechnology

The energy needed to separate molecules from the liquid phase and move them into the gas phase at constant temperature called

TLS Online TPP Program

#Question id: 18640

#SCPH05 I Biotechnology

Bootstrapping technique in molecular phylogeny analysis is used to derive additional datasets by

TLS Online TPP Program

#Question id: 18387

#SCPH05 I Biotechnology

Structural features that make these compounds resistant to microbial degradation include

1. substitution of H by other groups

2. heterocyclic compounds

3. branched linear chains

Which of the above are correct?

TLS Online TPP Program

#Question id: 640

#SCPH05 I Biotechnology

The data in the table above were collected for an enzyme-catalyzed reaction. The Km for this enzyme is approximately

TLS Online TPP Program

#Question id: 15006

#SCPH12 I Genetics

Which of the following is not a mechanism for sex determination?