Skip to ContentGo to accessibility pageKeyboard shortcuts menu
OpenStax Logo
Microbiology

Critical Thinking

MicrobiologyCritical Thinking

Critical Thinking

47.

In the figure shown, if the nuclei were contained within the stalks of Acetabularia, what types of caps would you expect from the pictured grafts?

A diagram showing a. mediterranea and A. crenulata. Graft A is of the foot of A. mediterranea and the upper stalk of A. crenulata. Graft B is of the foot of A. crenulata and the upper stalk of A. mediterranea.
48.

Why are Hershey and Chase credited with identifying DNA as the carrier of heredity even though DNA had been discovered many years before?

49.

A certain DNA sample is found to have a makeup consisting of 22% thymine. Use Chargaff’s rules to fill in the percentages for the other three nitrogenous bases.

A DNA strand has 22% thymine. The percentages for adenine, guanine, and cytosine are blank.
50.

In considering the structure of the DNA double helix, how would you expect the structure to differ if there was base pairing between two purines? Between two pyrimidines?

51.

Identify the location of mRNA, rRNA, and tRNA in the figure.

A long strand is labeled ii. A small oval is attached to the bottom of this strand; and a large dome to the top. These two structures together are labeled iii. Smaller rectangles sit inside the large dome and are attached to small segments of the long strand. These rectangles are labeled i.
52.

Why does it make sense that tRNA and rRNA molecules are more stable than mRNA molecules?

53.

A new type of bacteriophage has been isolated and you are in charge of characterizing its genome. The base composition of the bacteriophage is A (15%), C (20%), T (35%), and G (30%). What can you conclude about the genome of the virus?

PreviousNext
Order a print copy

As an Amazon Associate we earn from qualifying purchases.

Citation/Attribution

This book may not be used in the training of large language models or otherwise be ingested into large language models or generative AI offerings without OpenStax's permission.

Want to cite, share, or modify this book? This book uses the Creative Commons Attribution License and you must attribute OpenStax.

Attribution information
  • If you are redistributing all or part of this book in a print format, then you must include on every physical page the following attribution:
    Access for free at https://openstax.org/books/microbiology/pages/1-introduction
  • If you are redistributing all or part of this book in a digital format, then you must include on every digital page view the following attribution:
    Access for free at https://openstax.org/books/microbiology/pages/1-introduction
Citation information

© Jan 10, 2024 OpenStax. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License . The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo are not subject to the Creative Commons license and may not be reproduced without the prior and express written consent of Rice University.