Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Biology Expert

One thing biologists do in order to determine how a cell or organism works is to find a mutant that does not do the activity. They go on a mutant hunt! Because it can take a long time, biologists speed up the process by using mutagens-often chemicals or radiation.

When mutation are introduced by mutagens, some cells are killed and some of the survivors are mutated.

If 1 million Neurospora spores are exposed to X-rays (2000r/min for 18 min), 84% of the spores are killed, and of the survivors, 259 evidence mutation. If P is the probability of a mutant spore, the probability of a nonmutant spore is q=1-p. so, in a large sample of n spores, the probability of no mutants is q to the n (qn). the probability of at least one being mutant is 1-qn.

a) what percentage of the surviving spores evidence mutation?

b) How many of the surviving spores would you need to check to be 90% certain of finding at least one mutant? (Hint: what is the value of q and use log10 to solve for n)

Biology, Academics

  • Category:- Biology
  • Reference No.:- M943794

Have any Question? 


Related Questions in Biology

What effect did grounding of the planes after 911 have on

What effect did grounding of the planes after 9/11 have on daily temperature ranges? Why was temperature affected?

In hiring a prospective employee there are legitimate

In hiring a prospective employee, there are legitimate reasons for not hiring someone. For example, the prospective employee may not meet legal requirements (i.e., he or she is a minor and cannot complete the tasks of th ...

What is the definition for sporadic in What is the definition for sporadic in

What is the definition for sporadic in epidemiology?

Discuss the common role the sonic hedgehog gene serves in

Discuss the common role the Sonic Hedgehog gene serves in the limb development of all living vertebrates. What does the result of the skate embryo experiment mean about the evolutionary origin of Sonic Hedgehog?

Question 1future drugs and vaccines for the use against

Question 1 Future drugs and vaccines for the use against Ebola Pick an experimental drug, vaccine or other treatment that is being considered in the fight against Ebola. http://www.cdc.gov/vhf/ebola/outbreaks/2014-west-a ...

What is photosynthesis and what is the pigment for it to

What is photosynthesis and what is the pigment for it to take place?

1 what is the relationship between the structure of a blood

1. What is the relationship between the structure of a blood vessel and blood pressure? 2. What is the relationship between the structure of a blood vessel and blood velocity? 3. Describe the pathway of urine from produc ...

How does the presence of nitrate phosphate and ammonium

How does the presence of nitrate + phosphate and ammonium ions affect fertilization?

1 what cultural considerations does a medical assistant

1. What cultural considerations does a medical assistant need to be aware of when addressing issues related to the female reproductive system? 2. Taking a patient's reproductive health history requires that the medical a ...

Imagine that you had 11000 of the worlds gross domestic

Imagine that you had 1/1000 of the worlds gross domestic product available at your disposal for conservation biology product? Is it a sound conservation decision to protect just 4% of the earth's living habitat? Why or w ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro