Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Biology Expert

EDIT to the problem below: I just realized that the various numbers of offspring add up to 9900, not 10,000, which is the supposed total. So for problem #2, I randomly added 100 to my recombinant numbers and got the answer, 30.1, which turned out to be correct.

But the same thing did not work for problem #1. Adding 100 to the recombinant numbers resulted in an answer of 1.2, which is not correct. Nor is the correct answer 1.1, which would make up the distance between 30.1 -- 29 (the distane from sp-cn minus the distance from px-cn.)

So here are my problems about this new twist: 1) Why would 100 offspring be left out of the various classes of offspring. How is this a reflection of what happens in real life experiments? 2) How do you know where to add the 100 offspring in and where not to? The distance between px-cn didn't need the extra 100. And the distance between sp-cn did. 3) And why isn't any of this working for the distance between px-sp?

Thank you!!

Hi. I can't figure out this problem:

Females heterozygous for the recessive second chromosome mutations pn, px, and sp are mated to a male homozygous for all three mutations. The offspring are:

px sp cn 1410
px sp + 3498
px + cn 1
px + + 11
+ sp cn 8
+ sp + 0 (none seen)
+ + cn 3483
+ + + 1489
-----
10,000 total

I correctly figured out that the middle gene is px.
I correctly figured out that the distance between
px-cn is 20 m.u.

But I can't seem to figure out 1) the distance between
px-sp or 2) the distance between sp-cn.

Here's what I'm doing:

First, I assigned the following types to the above listed classes, in the order that they are listed above:

SCO (single crossover)
P (parental)
DCO (double crossover)
SCO
SCO
DCO
P
SCO

1) To figure out the RF of px-sp: [(1 + 11 + 8 + 0) / 10,000] x 100 = 0.2 m.u.

1) To figure out the RF of sp-cn: [(1410 + 11 + 8 + 1489) / 10,000] x 100 = 29.18 m.u.

But neither one of those answers is correct.

Biology, Academics

  • Category:- Biology
  • Reference No.:- M928173

Have any Question? 


Related Questions in Biology

Do some research and describe at least one specific example

Do some research and describe at least one specific example where antibiotic overuse has resulted in a negative effect. What was the effect of this overuse? How could this have been prevented? What do you think about ant ...

Hematology case studycandy is a 13 year old who lives with

Hematology Case study Candy is a 13 year old who lives with her father and younger sister. Her mother died when Candy was 6 years old and her sister was 4 years old. Her father works a 12 hour shift full time to support ...

Which cultures would be more likely to focus on external

Which cultures would be more likely to focus on external controls? Which cultures would consider direct controls to be more important than indirect controls? Be specific and explain your answer.

28 year old female with 2 day history of urinary frequency

28 year old female with 2 day history of urinary frequency, burning and pain upon urination, lower abdominal pain and vaginal discharge history of recurrent UTIs, chlamydia, gonorrhea x2 she has 3 children.

Blood typingintroductionblood typing is critical in

Blood Typing Introduction Blood typing is critical in medicine. If a person receives the wrong type of blood, they can die. The purpose of this virtual lab is to allow you to simulate determining the blood type of three ...

Of the four chambers of the human heart which has the

Of the four chambers of the human heart, which has the thickest walls, and why? Why can you not catch the same cold twice, but a new cold will make you sick for a week or two? What is the key step in spermatogenesis that ...

In the united states in 2006 the total population was

In the United States in 2006, the total population was approximately 298,363,000. Of these, fires killed approximately 3,100 people. For a person in the United States in 2006, what was the risk of being killed by a fire? ...

Describe and give examples of the primary human tissues and

Describe and give examples of the primary human tissues, and where in the body each can be found. Please include references.

1 what are the benefits of sequencing the genome of an

1) What are the benefits of sequencing the genome of an organism? Explain by giving 3 examplesfor the applications of genomic information. 2) Why do not modern apes become human today? World limit is between 250-400

Assignmentshort answeressay write your answers and submit

Assignment Short Answer ESSAY. Write your answers and submit assignment via the attachment. Please be specific and use examples from the textbook when appropriate 1) What 4 factors do you think should be taken into consi ...

  • 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