Practice Questions

TLS Online TPP Program

#Question id: 1534

Cadherin proteins help animal cells stick (adhere) to each other. Choose which statement about cadherin in cancer cells that are metastasizing (spreading) throughout a patient's body is most likely correct.

#Unit 4. Cell Communication and Cell Signaling

Cadherin proteins in metastasizing cancer cells are likely to have mutations that make them less "sticky."
Cadherin proteins in metastasizing cancer cells are likely to have mutations that make them more "sticky."
Mutations in cadherin proteins are unlikely to affect the metastasizing of cancer cells.
Mutations in cadherin proteins accumulate at a constant rate that can be measured by a molecular clock.

More Questions

TLS Online TPP Program

#Question id: 29435

#Unit 6. System Physiology – Plant

Flavonoid's compound release by host plant are given match the following

TLS Online TPP Program

#Question id: 29436

#Unit 6. System Physiology – Plant

Which of the following is incorrectly paired

a. NodA is an N-acyltransferase

b. NodB is a chitin-oligosaccharide deacetylase

c. NodB is a N-acyltransferase

d. NodC is a chitin-oligosaccharide synthase

f. NodC is a chitin-oligosaccharide deacetylase

TLS Online TPP Program

#Question id: 29437

#Unit 6. System Physiology – Plant

Important chemical reactions involved in Nitrate assimilation at roots are given

a. a & b both is Nitrate reductase

b. a & b both is NADPH nitrite reductase

c. a is Nitrate reductase and reaction takes place in plastid

d. a is Nitrate reductase and b is NADPH nitrite reductase

Choose the correct statement made regarding the above reactions of the following

TLS Online TPP Program

#Question id: 29438

#Unit 6. System Physiology – Plant

Symbiotic nitrogen fixation in legume nodules involves Root hair cellular responses to bacterial Nod factor and this response is time-based phenomenon

Match the Response with their appropriate timing

TLS Online TPP Program

#Question id: 29439

#Unit 6. System Physiology – Plant

Nitrogenase, a complex metal containing enzyme is involved in conversion of N2 to NH3•

a. Nitrogenase is composed of two component proteins

b. Nitrogenase is a complex consisting of the MoFe protein (dinitrogenase or component I) a heterotetramer

c. Nitrogenase is a complex consisting of the MoFe protein (dinitrogenase or component I) a heterotetramer

d. Fe protein (dinitrogenase reductase or component II) a heterodimer

Which of the combination of above statement about Nitrogenase is INCORRECT

TLS Online TPP Program

#Question id: 29440