Question 1

Which of the following best defines recombinant DNA technology?

Accepted Answer

The manipulation and combination of DNA from different sources to create new genetic material.

Question 2

Which of the following is an example of a useful product made possible by biotechnology?

Accepted Answer

Insulin produced by genetically modified bacteria.

Question 3

What is the main goal of recombinant DNA technology?

Accepted Answer

To combine DNA from different organisms to produce desired traits.

Question 4

Which enzyme is primarily responsible for synthesizing nucleic acids during recombinant DNA technology?

Accepted Answer

DNA polymerase

Question 5

The polymerase chain reaction (PCR) is used to:

Accepted Answer

Amplify specific DNA sequences.

Question 6

Which of the following best describes site-directed mutagenesis?

Accepted Answer

A targeted method to introduce specific mutations into a gene.

Question 7

Reverse transcriptase is used to:

Accepted Answer

Convert RNA into complementary DNA (cDNA).

Question 8

Restriction enzymes are used in recombinant DNA technology to:

Accepted Answer

Cut DNA at specific recognition sites.

Question 9

Which term describes the application of genetic manipulation to improve agricultural crops?

Accepted Answer

Genetic engineering

Question 10

The CRISPR system is primarily used for:

Accepted Answer

Targeted genome editing.

Question 11

DNA probes are used in molecular biology to:

Accepted Answer

Identify specific DNA sequences in a sample.

Question 12

Which technique separates DNA fragments based on size using an electric field?

Accepted Answer

Gel electrophoresis

Question 13

Microarray technology is used to:

Accepted Answer

Analyze the expression of thousands of genes simultaneously.

Question 14

Which of the following is NOT a method for introducing recombinant DNA into cells?

Accepted Answer

Gel electrophoresis

Question 15

Fluorescent in situ hybridization (FISH) is used to:

Accepted Answer

Detect specific DNA sequences within chromosomes.

Question 16

Sanger sequencing is based on:

Accepted Answer

The incorporation of chain-terminating nucleotides during DNA synthesis.

Question 17

Which of the following is a real-world application of recombinant DNA technology in medicine?

Accepted Answer

Production of human insulin by genetically modified bacteria.

Question 18

Gene therapy is best defined as:

Accepted Answer

The introduction of normal genes into cells to correct genetic disorders.

Question 19

Which equation represents the amplification of DNA during PCR, assuming $$n$$ cycles and starting with one copy?

Accepted Answer

$$N = 2^n$$

Question 20

Which of the following is a major ethical concern regarding recombinant DNA technology?

Accepted Answer

Potential unintended consequences in genetically modified organisms.

Ch 8 Study Notes: Recombinant DNA Technology and Biotechnology

Study Guide - Practice Questions