Melanins are light-absorbing biopolymers useful as topical sunscreens, sunlight-protective coatings for plastics, etc. Which gene is used for producing melanin. 

TLS Online TPP Program

#Question id: 11929

#Unit 10. Ecological Principles

This mating system is thse one most commonly seen in animals. Males attempt to mate with as many females as possible and rarely form a lasting pair bond. 

TLS Online TPP Program

#Question id: 4017

#Unit 3. Fundamental Processes

Which of the following sequences of events occurs when E. coli are released from catabolite repression by transfer to low-glucose medium?

TLS Online TPP Program

#Question id: 983

#Unit 1. Molecules and their Interaction Relevant to Biology

The pyrimidine ring system is shown below. What is the source of the C-2 during the de novo biosynthesis of pyrimidines?

TLS Online TPP Program

#Question id: 9195

#Unit 9. Diversity of Life Forms

Philippe Bouchet and colleagues conducted a massive survey of marine molluscs on the west coast of New Caledonia. For 20% of the total species that were located and identified, only a single specimen was found. What does that suggest about the diversity of molluscs in this area?

TLS Online TPP Program

#Question id: 5560

#Unit 5. Developmental Biology

In a newly fertilized egg, the vitelline layer ________.