In the yeast cross of ade2 met14 his3 x + + +, a total of 120 tetrads are analyzed. The following tetrad types are found in the numbers shown below each tetrad. The markers ade2, met14, and his3 are abbreviated a, m, and h and the wild type allele of each gene is indicated by +.

 

Use this categorization and the numbers of each type to determine which (if any) of the three markers are linked. For any linked markers, calculate the distance between them in cM.      

To measure the distance between two linked His– mutations, you cross a his2– mutant to a his4– mutant and then dissect 100 tetrads. Your lab partner records which spore clones are His+ and which are His– ; but then the fool loses the papers on which most of the data is recorded. In the end all he can remember is that there were three different tetrad types an that there was only one tetrad of the type with 2 His+ and 2 His– spore clones.

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#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

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#Question id: 28157

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is the cofactor for glutathione peroxidase 

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#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

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#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

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#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

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#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