Question 1

Which of the following best describes the use of microorganisms to produce useful products such as antibiotics, enzymes, or hormones?

Accepted Answer

Biotechnology

Question 2

Which of the following is NOT a typical product of recombinant DNA technology?

Accepted Answer

Antibiotics produced by wild-type fungi

Question 3

Mutagens are often used in biotechnology research for which of the following purposes?

Accepted Answer

To increase the rate of spontaneous mutations for strain improvement

Question 4

The process of sequencing and analyzing the complete genetic information of an organism is known as:

Accepted Answer

Genomics

Question 5

Which statement best describes a transgenic organism?

Accepted Answer

An organism with a gene inserted from another species

Question 6

A microbe that produces a protein toxic to a variety of insect pests is most likely expressing which of the following?

Accepted Answer

Bt toxin

Question 7

Replacing a patient's defective gene with a functional gene fragment is an example of:

Accepted Answer

Gene therapy

Question 8

A procedure used to determine whether a person has a heritable disease by analyzing their DNA is called:

Accepted Answer

Genetic screening

Question 9

Double-stranded DNA fragments are separated by size using which laboratory technique?

Accepted Answer

Gel electrophoresis

Question 10

In the transformation of bacteria, 'heat shock' is used to:

Accepted Answer

Increase the permeability of the bacterial cell membrane to DNA

Question 11

Which of the following is NOT a goal of recombinant DNA technology?

Accepted Answer

Increasing the mutation rate in wild populations

Question 12

The use of microbes to manufacture practical products such as vaccines or hormones is best described as:

Accepted Answer

Biotechnology

Question 13

Fluorescent nucleotides are most commonly associated with which of the following techniques?

Accepted Answer

DNA sequencing

Question 14

Which of the following is NOT a typical characteristic of a vector used in recombinant DNA technology?

Accepted Answer

Is too large to be taken up by host cells

Question 15

DNA fingerprinting can be used for all of the following EXCEPT:

Accepted Answer

Diagnosing genetic diseases

Question 16

Which of the following is NOT a tool commonly used in recombinant DNA technology?

Accepted Answer

Antibiotic resistance genes in wild-type bacteria

Question 17

A scientist wants to clone a gene into a plasmid vector. Which sequence of steps is most appropriate?

Accepted Answer

Digest plasmid and gene with the same restriction enzyme, ligate, transform into bacteria, select with antibiotic

Question 18

A patient is diagnosed with a genetic disorder caused by a single defective gene. Which biotechnology approach could potentially cure the disease?

Accepted Answer

Gene therapy to introduce a functional copy of the gene

Question 19

A forensic scientist is analyzing a crime scene sample. Which combination of techniques would most likely be used to identify the suspect's DNA?

Accepted Answer

PCR amplification followed by gel electrophoresis

Question 20

Which of the following equations best represents the relationship between the migration distance ($$d) of a $$DNA fragment and its size ($$s) $$during gel electrophoresis?

Accepted Answer

$$d \propto \frac{1}{\log_{10}(s)}$$

Microbiology Chapter 8 Review: Biotechnology and Recombinant DNA Guidance

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