Which of the following statement(s) is (are) true of V-class proton pumps?

a. They are ATPases.

b. They are present in membranes of plant vacuoles.

c. They serve to decrease the pH inside a lysosome.

d. They can acidify the lumen of an organelle (or the extracellular space) because these pumps are electrogenic

TLS Online TPP Program

#Question id: 7072

#Unit 5. Developmental Biology

Formation of  Henson’s node takes place by:

TLS Online TPP Program

#Question id: 279

#Unit 1. Molecules and their Interaction Relevant to Biology

What is the order of packaging of chromatin in eukaryotic cells from smallest to largest size?

TLS Online TPP Program

#Question id: 15485

#Unit 12. Applied Biology

Plasmid vector systems for cloning in which bacteria have been established, for amino acid production and related strains.

A. Corynebacterium

B. Micrococcus, 

C. Brevibacterium, 

D. Microbacterium

Choose the correct option.

TLS Online TPP Program

#Question id: 5214

#Unit 11. Evolution and Behavior

What is the most probable explanation for the continued presence of pseudogenes in a genome such as our own?

TLS Online TPP Program

#Question id: 18759

#Unit 13. Methods in Biology

What is the name of the site where Cre enzyme acts?