The answer to the green icosahedral is T=7d and the colored is T=4, can anyone t

Question

The answer to the green icosahedral is T=7d and the colored is T=4, can anyone tell me how they got that answer? I know that T=h^2+k^2+hk and that h,k is the "location, distance" of two pentavalent lattice points, but im having trouble finding the pentavalent points and finding the right path to the next adjacent point.

Multiple Attempts This test allows multiple attempts. Force Completion This test can be saved and resumed later ns es Question Completion Status: elp Integrity QUESTION1 What is the T-number of this icosahedron? O b. T-7 dextro O c-T-7 laevo Oe.T-12 of?16 QUESTION 2 Click Save and Submit to save and submit. Click Save All Answers to save all answers

Explanation / Answer

Question 1

Icosahedral capsids with a triangulation number T=7 are composed of 12 pentameric and 60 hexameric capsomeres for a total of 420 capsid proteins. These capsids are skewed, and are therefore described as either right- (dextro) or left- (laevo) handed.

h=2 k=1

T= h2+k2+hk

T=(2)2+(1)2+(2)(1)

T= 7

Question 3

False

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