In a PCR Reaction, a Few Seconds at High Temperature

question 20

Multiple Choice

In a PCR reaction, a few seconds at high temperature disrupts the ____ that hold the two strands of DNA together, so every molecule of DNA unwinds and becomes single-stranded.​

• A) covalent bonds​
• B) ​peptide bonds
• C) ​hydrogen bonds
• D) ​lipoproteins
• E) ​DNA ligases

---

Definitions:

Price Floor

A minimum price set by the government for certain goods and services, which cannot legally be lowered.

Temporary Surplus

A short-term situation where the supply of a product or service exceeds its demand, often leading to price reductions.

Permanent Surplus

A situation where a country consistently exports more goods and services than it imports, leading to a positive balance of trade over time.

Equilibrium Price

The price at which the quantity of a product or service demanded by consumers matches the quantity supplied by producers, leading to a balance in the market.