Practice Questions

TLS Online TPP Program

#Question id: 9609

Dozens of potato varieties exist, differing from each other in potato-tuber size, skin color, flesh color, and shape. One might construct a classification of potatoes based on these morphological traits. Which of these criticisms of such a classification scheme is most likely to come from an adherent of the phylocode method of classification?

#Unit 1. Molecules and their Interaction Relevant to Biology

Flesh color, rather than skin color, is a valid trait to use for classification because it is less susceptible to change with the age of the tuber.
Flower color is a better classification criterion, because below-ground tubers can be influenced by minerals in the soil as much as by their genes.
The only biologically valid classification of potato varieties is one that accurately reflects their genetic and evolutionary relatedness.
The most accurate phylogenetic code is that of Linnaeus. Classify potatoes based on Linnaean principles; not according to their color.

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TLS Online TPP Program

#Question id: 28156

#Unit 1. Molecules and their Interaction Relevant to Biology

Some statement are given regarding Platelet-activating factor

a. It is more water-soluble than most glycerophospholipids and plasmalogens

b. It has a long ether-linked alkyl chain at C-1 of glycerol

c. This released from basophils

d. It stimulates platelet aggregation and the release of vasoconstrictor serotonin from platelets

Which of the following is true

TLS Online TPP Program

#Question id: 28157

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is the cofactor for glutathione peroxidase

TLS Online TPP Program

#Question id: 28158

#Unit 1. Molecules and their Interaction Relevant to Biology

competitive inhibition may be

a. linear

b. parabolic

c. hyperbolic

d. zig-zag

TLS Online TPP Program

#Question id: 28159

#Unit 1. Molecules and their Interaction Relevant to Biology

The given plot and statement are made after performing the DST calorimetry of a protein

a. X represents perfect folding of protein

b. X represents breaking of a bond

c. Y represents perfect folding of protein

d. Y represents perfect breaking of a bond

Which of the following is correct

TLS Online TPP Program

#Question id: 28160

#Unit 1. Molecules and their Interaction Relevant to Biology

'Protein folding is not random, must have pathways' this statement can be explained by

TLS Online TPP Program

#Question id: 28161

#Unit 1. Molecules and their Interaction Relevant to Biology

In Parkinson disease, the misfolded form of the protein Alpha-synuclein aggregates into spherical filamentous masses called