Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

10 Questions

1 Views

Chromosomes and Genomes Quiz

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following best describes the composition of viral chromosomes?

Contain all the genetic material possessed by an organism

Nucleic acid, either DNA or RNA, single or double stranded (correct)

Circular, double-stranded DNA compacted into nucleoid

Largely devoid of associated proteins

What is a characteristic feature of bacterial chromosomes?

Capable of packaging long DNA into a small volume

Consist of mitochondrial genome

Readily replicated and transcribed (correct)

Contain less genetic information than eukaryotic chromosomes

What is a distinct feature of eukaryotic genomes?

Refer to one complete set of nuclear chromosomes (correct)

Consist of mitochondrial genome

Largely devoid of associated proteins

Typically a single circular chromosome

What distinguishes the genome of bacteria from that of eukaryotes?

Much smaller than eukaryotic genomes Signup and view all the answers

What is a characteristic of the structure of bacterial chromosomal DNA?

Associated with DNA-binding proteins Signup and view all the answers

What is the term for the nontranscribed DNA between adjacent genes?

Intergenic regions Signup and view all the answers

What enzyme introduces negative supercoils using energy from ATP in bacteria?

DNA gyrase Signup and view all the answers

What is the main effect of negative supercoiling in bacterial DNA?

Facilitates compaction of the chromosome Signup and view all the answers

Which drug class is known to inhibit gyrase and other bacterial topoisomerases, but does not inhibit eukaryotic topoisomerases?

Quinolones Signup and view all the answers

What is the term for the DNA compaction microdomains that contain 40,000 to 80,000 bp of DNA in each loop in E. coli?

Loop domains Signup and view all the answers