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TLS Online TPP Program

#Question id: 11172

Consider the consequences of a harmless prey that evolves toward mimicry of a model that has an antipredator defense (Batesian mimicry). What happens to the effectiveness of this defense as more and more prey in the population are harmless mimics

#Unit 10. Ecological Principles
  1. The number of both models and mimics is unlimited because they both reinforce the protection afforded by the warning color pattern
  2. The number of mimics is limited because they dilute the protection afforded by the warning color pattern
  3. The number of mimics is unlimited because they reinforce the protection afforded by the warning color pattern
  4. The number of models is limited because they dilute the protection afforded by the warning color pattern
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TLS Online TPP Program

#Question id: 11792

#Unit 1. Molecules and their Interaction Relevant to Biology

Hyaluronic acid is an important glycosaminoglycan component of connective tissue. Hyaluronate molecules are composed of
A. D-glucuronic acid and N-acetyl-D-glucosamine
B. D-galactose and N-acetyl-D-glucosamine
C. β(1→4) and β(1→3) alternate linkages
D. β(1→4) and β(1→6) alternate linkages
Which of the above 2 combinations are correct
TLS Online TPP Program

#Question id: 11793

#Unit 1. Molecules and their Interaction Relevant to Biology

On the proteoglycan the glycosaminoglycan chain can bind to extracellular proteins through
TLS Online TPP Program

#Question id: 11794

#Unit 1. Molecules and their Interaction Relevant to Biology

Glypicans are derivatives of
TLS Online TPP Program

#Question id: 11795

#Unit 1. Molecules and their Interaction Relevant to Biology

_________ residue in a tetrasaccharide linker connects a glycosaminoglycan such as chondroitin 4-sulfate to _______ residue in the core protein. The residue at the reducing end of the linker is joined by its anomeric carbon to the hydroxyl of this residue.
TLS Online TPP Program

#Question id: 11796

#Unit 7. System Physiology – Animal

Which of the following hormones is largely unbound to plasma proteins?
TLS Online TPP Program

#Question id: 11797

#Unit 6. System Physiology – Plant

A living cytoplasmic connection penetrate the walls between sieve tube elements and their companion cells; which are often complex and branched on the companion cell side, known as