Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
12th Edition
ISBN: 9780135755785
Author: Gerald Audesirk, Teresa Audesirk
Publisher: PEARSON+
bartleby

Concept explainers

bartleby

Videos

Textbook Question
Book Icon
Chapter 1.4, Problem 1HYEW

Fruit flies, bacteria from hot springs, sea jellies, Gila monsters, burdock burrs—why study these obscure forms of life? In fact, research on these organisms, and a host of others, has improved people's lives Fruit flies, for example, have been used for over 100 years to study how genes influence traits. Their genes are similar enough to ours that many human genetic diseases can be investigated to some extent in these flies—a pair of which can produce several hundred genetically identical offspring in a few weeks, An obscure bacterium from a hot spring in Yellowstone National Park is the source of a protein crucial to a process that rapidly copies DNA. Thanks to this discovery, the amount of DNA in a few skin cells left at a crime scene can now generate a sample large enough to be compared to the DNA of a suspect. A fluorescent green protein discovered in a sea jelly can be attached to a gene, protein, or virus, making it glow and allowing researchers to monitor its activity. A protein found in the Gila monster’s venomous saliva was approved in 200S as a drug to help diabetics maintain more constant blood sugar levels. And what did microscopic examination of a burr lead to? The inspiration for Velcro, Some people criticize governments for funding research into topics that seem obscure, like what makes a jellyfish glow. But no one can predict where such studies will lead; even lines of research that appear to be dead ends can provide unexpected and valuable insights.

Why Scientists Study Obscure Organisms?

Chapter 1.4, Problem 1HYEW, Fruit flies, bacteria from hot springs, sea jellies, Gila monsters, burdock burrswhy study these

Blurred answer
Students have asked these similar questions
Molecular Biology Please help with question. thank you You are studying the expression of the lac operon. You have isolated mutants as described below. In the presence of glucose, explain/describe what would happen, for each mutant, to the expression of the lac operon when you add lactose AND what would happen when the bacteria has used up all of the lactose (if the mutant is able to use lactose).5. Mutations in the lac operator that strengthen the binding of the lac repressor 200 fold 6. Mutations in the promoter that prevent binding of RNA polymerase 7. Mutations in CRP/CAP protein that prevent binding of cAMP8. Mutations in sigma factor that prevent binding of sigma to core RNA polymerase
Molecular Biology Please help and there is an attached image. Thank you. A bacteria has a gene whose protein/enzyme product is involved with the synthesis of a lipid necessary for the synthesis of the cell membrane. Expression of this gene requires the binding of a protein (called ACT) to a control sequence (called INC) next to the promoter. A. Is the expression/regulation of this gene an example of induction or repression?Please explain:B. Is this expression/regulation an example of positive or negative control?C. When the lipid is supplied in the media, the expression of the enzyme is turned off.Describe one likely mechanism for how this “turn off” is accomplished.
Molecular Biology Please help. Thank you. Discuss/define the following:(a) poly A polymerase (b) trans-splicing (c) operon

Chapter 1 Solutions

Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)

Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Text book image
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Text book image
Body Structures & Functions Updated
Biology
ISBN:9780357191606
Author:Scott
Publisher:Cengage
Text book image
Body Structures & Functions
Biology
ISBN:9781285695495
Author:Scott
Publisher:Cengage
Text book image
Biology: The Unity and Diversity of Life (MindTap...
Biology
ISBN:9781337408332
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Text book image
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Mechanisms of Genetic Change or Evolution; Author: Scientist Cindy;https://www.youtube.com/watch?v=5FE8WvGzS4Q;License: Standard Youtube License