TLS Online TPP Program

#Question id: 1271


Common sugars found in proteoglycans include all of the following except:

#Unit 4. Cell Communication and Cell Signaling
  1. N-acetyl-D-glucosamine      

  2. D-glucose

  3. D-glucuronic acids 

  4. L-iduronic acid

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TLS Online TPP Program

#Question id: 5002

#Unit 11. Evolution and Behavior

All animals with eyes or eyespots that have been studied so far share a gene in common. When mutated, the gene Pax-6 causes lack of eyes in fruit flies, tiny eyes in mice, and missing irises (and other eye parts) in humans. The sequence of Pax-6 in humans and mice is identical. There are so few sequence differences with fruit fly Pax-6 that the human/mouse version can cause eye formation in eyeless fruit flies, even though vertebrates and invertebrates last shared a common ancestor more than 500 million years ago.

The appearance of Pax-6 in all animals with eyes can be explained in multiple ways. Based on the information above, which explanation is most likely?

TLS Online TPP Program

#Question id: 11663

#Unit 10. Ecological Principles

Successional community changes in every steps,  process of lithosere is involved in a particular order manner such as,

TLS Online TPP Program

#Question id: 2929

#Unit 2. Cellular Organization

Exit from mitosis depends upon the degradation of:

TLS Online TPP Program

#Question id: 27070

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following statements is correct regarding the stereochemistry of Thr, Ile 
1. Thr, Ile is special case because of two chiral center exist in L-Ile in 2R,3S and L-Thr in 2R,3S configuration 
2. Thr, Ile is special case because of two chiral center exist in D-Ile in 2R,3S and D-Thr in 2R,3S configuration 
3. Thr, Ile is special case because of two chiral center exist in L–Ile in 2S,3R and L–Thr in 2S,3R 
4. Thr, Ile is special case because of two chiral center exist in D–Ile in 2S,3R and D–Thr in 2S,3R

TLS Online TPP Program

#Question id: 677

#Unit 1. Molecules and their Interaction Relevant to Biology

A helical wheel can be used to show