Which of the following statement(s) is (are) true of the α subunit of a G protein?

a. It physically associates with the receptor.              

b. It binds GDP.

c. It binds GTP.                     

d. It is a transmembrane protein.

TLS Online TPP Program

#Question id: 600

#Section 2: General Biology

Two substances are used to produce a certain biological product in an enzyme-catalyzed reaction. It is found that both substrates must bind to the enzyme, first one, then the other before the product is produced. This is an example of a/an ________.

TLS Online TPP Program

#Question id: 14373

#Section 2: General Biology

How bacterial cell can respire more as compared to multicellular organism?

TLS Online TPP Program

#Question id: 3897

#Section 3: Genetics, Cellular and Molecular Biology

Gene silencing by RNA interference acts by of the target gene.

TLS Online TPP Program

#Question id: 27315

#Section 5: Bioprocess Engineering and Process Biotechnology

In an exponentially growing batch culture of Saccharomyces cerevisiae, the cell density is 30 𝑔𝐿−1(𝐷𝐶W), the specific growth rate (𝜇) is 0. 4ℎ−1 and substate uptake rate (rs) is 18𝑔𝐿−1ℎ−1. The cell yield coefficient 𝑌𝗑/𝑠 will be

TLS Online TPP Program

#Question id: 10510

#Section 6: Plant, Animal and Microbial Biotechnology

Constitutive chemical defenses are effective against many different herbivores, including insects and mammals. Hemlock (Cicuta sp.) produces which toxins that a polyacetylene prolongs the repolarization of neuronal action potentials.