Campbell Biology 10th Edition Chapter 16 Quiz
26 Questions
0 Views

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

What is the substance of inheritance?

  • RNA
  • Carbohydrates
  • Proteins
  • Deoxyribonucleic acid (DNA) (correct)

During DNA replication, which molecule directs the development of biochemical, anatomical, and physiological traits?

  • mRNA
  • DNA polymerase
  • DNA (correct)
  • tRNA

Which nucleotide is found in DNA but not in RNA?

  • Thymine (correct)
  • Uracil
  • Adenine
  • Cytosine

What is the structure introduced by James Watson and Francis Crick for DNA?

<p>Double-helical model (D)</p> Signup and view all the answers

What is the main function of DNA polymerase during DNA replication?

<p>Adding nucleotides to the new DNA strand (B)</p> Signup and view all the answers

Which molecule is used to initiate DNA replication by providing a starting point for DNA polymerase?

<p>RNA primer (C)</p> Signup and view all the answers

What enzyme synthesizes a short RNA primer in DNA replication?

<p>Primase (C)</p> Signup and view all the answers

Which enzyme is responsible for proofreading and repairing newly made DNA by replacing incorrect nucleotides?

<p>DNA polymerase I (D)</p> Signup and view all the answers

What is the source of genetic variation upon which natural selection operates?

<p>Mutations (C)</p> Signup and view all the answers

In which repair mechanism do repair enzymes correct errors in base pairing?

<p>Mismatch repair (A)</p> Signup and view all the answers

Which enzyme catalyzes the lengthening of telomeres in germ cells?

<p>Telomerase (D)</p> Signup and view all the answers

What happens in nucleotide excision repair?

<p>A nuclease cuts out and replaces damaged DNA stretches (D)</p> Signup and view all the answers

Which enzyme replaces the RNA primer with DNA nucleotides during DNA replication?

<p>DNA polymerase I (B)</p> Signup and view all the answers

What is the role of telomeres in eukaryotic chromosomes?

<p>Prevent shortening of DNA molecules (A)</p> Signup and view all the answers

Which enzyme synthesizes the leading strand continuously during DNA replication?

<p>DNA polymerase III (B)</p> Signup and view all the answers

What happens during mismatch repair in DNA replication?

<p>Repair enzymes correct errors in base pairing (A)</p> Signup and view all the answers

What is the role of RNA primers in DNA replication?

<p>Providing a starting point for DNA polymerase to begin synthesis (A)</p> Signup and view all the answers

In DNA replication, what is the main function of DNA polymerase?

<p>Adding new nucleotides to the growing DNA strand (D)</p> Signup and view all the answers

Which of the following accurately describes the process of DNA replication?

<p>Semiconservative replication produces two identical daughter DNA molecules, each with one old strand and one newly synthesized strand. (B)</p> Signup and view all the answers

During DNA replication, what is the function of helicase?

<p>Unwinding the double helix (A)</p> Signup and view all the answers

Which enzyme is responsible for sealing the nicks in the sugar-phosphate backbone of the newly synthesized DNA strand?

<p>Ligase (A)</p> Signup and view all the answers

What is the primary function of RNA primers in DNA replication?

<p>Provide a starting point for DNA polymerase to begin synthesis (A)</p> Signup and view all the answers

'Chargaff's rules' state that:

<p>'A' always pairs with 'T', and 'G' always pairs with 'C'. (D)</p> Signup and view all the answers

'Semiconservative replication' refers to:

<p>Each daughter DNA molecule having one parental strand and one newly synthesized strand. (C)</p> Signup and view all the answers

'Helicase' enzyme functions by:

<p>Unwinding the double helix structure of DNA. (D)</p> Signup and view all the answers

During DNA replication, which enzyme is responsible for synthesizing RNA primers?

<p>Primase (A)</p> Signup and view all the answers

More Like This

Campbell Biology Chapter 6 Flashcards
19 questions
Campbell Biology Chapter 1 Quiz
41 questions
Campbell Biology Ch4+5
123 questions

Campbell Biology Ch4+5

InterestingPeace2914 avatar
InterestingPeace2914
Use Quizgecko on...
Browser
Browser