You observed the two species of barnacles, P. aurelia and P. caudatum, occupy upper and lower strata of intertidal rocks, respectively. Only when P. caudatum was removed by you from the lowers strata, P. aurelia could occupy both the upper and lower strata. From the choice given below what would be your inference from these observations.

TLS Online TPP Program

#Question id: 33439

#Unit 1. Molecules and their Interaction Relevant to Biology

Histidine is synthesised thru

TLS Online TPP Program

#Question id: 33440

#Unit 1. Molecules and their Interaction Relevant to Biology

The biosynthesis of porphyrins, for which is a major precursor

TLS Online TPP Program

#Question id: 33441

#Unit 1. Molecules and their Interaction Relevant to Biology

Genetic defects in the biosynthesis of porphyrins can lead to the accumulation of pathway intermediates, causing a variety of human diseases known collectively as

TLS Online TPP Program

#Question id: 33442

#Unit 1. Molecules and their Interaction Relevant to Biology

Pyrimidine ring is synthesized as 

TLS Online TPP Program

#Question id: 2059

#Unit 2. Cellular Organization

For a protein to be an integral membrane protein, it would have to be:

TLS Online TPP Program

#Question id: 2060

#Unit 2. Cellular Organization

An animal cell lacking carbohydrates on the external surface of its plasma membrane would likely be impaired in which function?