What is racemic mixture? Why it is optically inactive?

1131

---

Which are the nucleotides “portions” that bind in the formation of nucleic acids?

1109

---

Name the first synthetic organic compound. Who proposed it and from which compound?

1125

---

What are similarities and differences between the transcription process and the replication processes?

1244

---

How do you call the geometrical isomerism, similar groups are present on same side?

1106

---

Name the 1st synthetic organic compound that was prepared from its elements is?

1113

---

How can we calculate the number of possible optical isomers for a given compound?

1243

---

What amount of catalyst is consumed in the reaction it catalyzes?

1133

---

How is the cooling of organs and tissues for medical transplantations associated with the effect of temperature upon enzymatic reactions?

1068

---

Why is not it correct to assert that dna self-replicates?

1090

---

Ethylene on ozonolysis gives which chemical compound?

1269

---

Does dna replication occur in cell division?

1162

---

What is isomerism?

1154

---

How does the formation of the enzyme-substrate complex?

1096

---

What is the primary structure of a protein?

1110

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