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Author Question: How many pyrrole rings are there in a porphyrin structure? A. 5 B. 4 C. 2 D ... (Read 78 times)

Shelles

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on: Jun 25, 2018
How many pyrrole rings are there in a porphyrin structure?
 
  A. 5
  B. 4
  C. 2
  D 1

Question 2

The globin portion of hemoglobin in normal adult humans is composed of which two amino acid chains?
 
  A. Two alphas, two betas (2, 2)
  B. Three betas, three deltas (3, 3)
  C. Two deltas, two betas (2, 2)
  D. Two sigmas, two gammas (2, 2)
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nyrave

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Reply #1 on: Jun 25, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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Shelles

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Reply 2 on: Jun 25, 2018
:D TYSM

diana chang

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Reply 3 on: Yesterday
Excellent

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