In deep-sea hydrothermal vents near the Galapagos Islands, bacteria obtain energy by oxidizing hydrogen sulphide released from the vents. Giant tube worms, which lack mouths and digestive systems, harbour the bacteria in their tissues and use them as a source of organic molecules. Clams obtain energy by filtering bacteria directly from the water, and numerous crabs and octopi feed on the clams. In this unique ecosystem, the bactena are playing the role of

TLS Online TPP Program

#Question id: 31150

#Unit 2. Cellular Organization

The most common CFTR mutation is a deletion of a phenylalanine at position 508 in the protein sequence. This mutation prevents:

TLS Online TPP Program

#Question id: 31151

#Unit 2. Cellular Organization

Mutation in a structural gene that codes for the lysosomal hydrolase that causes disease, called:

TLS Online TPP Program

#Question id: 31152

#Unit 2. Cellular Organization

Incubation of cell extracts with a nonhydrolyzable derivative of GTP for dynamin in the pinching off of vesicles during endocytosis, resulting:

TLS Online TPP Program

#Question id: 31225

#Unit 2. Cellular Organization

The protein ring complexes that establish linkages between sister chromatids that is called as: 

TLS Online TPP Program

#Question id: 31226

#Unit 2. Cellular Organization

Cohesins associate with chromosomes by cohesin loading factors, known as:

TLS Online TPP Program

#Question id: 31227

#Unit 2. Cellular Organization

Fission yeast cells carrying a CDK1 mutation in which the tyrosine-15 residue is replaced by phenylalanine, what will be the result?

a) Shows larger than normal cells

b) Shows smaller than normal cells

c) allows the phosphorylation of phenylalanine and normal cell proliferation are seen

d) premature mitotic CDK activation and entry into mitosis