Understanding Genetic Inheritance: A Two or Three Point Test Example

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Discussion Overview

The discussion revolves around the methodology of conducting a two or three-point test in genetics, specifically focusing on gene mapping and the identification of linked genes. Participants seek clarity on the process and examples related to this topic.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant requests a clear explanation of how to perform a two or three-point test in genetics.
  • Another participant seeks clarification on whether the inquiry pertains to mapping linked genes.
  • A third participant confirms that the discussion is indeed about mapping genes.
  • A later reply suggests using an example to illustrate the process, encouraging participants to attempt the problem independently before discussing it further.
  • The example provided includes specific gamete frequencies and prompts participants to identify parental genotypes and distinguish between single and double crossovers.

Areas of Agreement / Disagreement

Participants generally agree that the discussion pertains to mapping linked genes through a two or three-point test, but there is some uncertainty regarding the specifics of the initial question and the approach to explaining it.

Contextual Notes

The discussion lacks detailed assumptions about prior knowledge of genetic concepts and does not resolve the specifics of how to conduct the tests or interpret the example provided.

Domenico94
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Hi everyone. Can someone please explain me how a two or three points test can be made, in the field of genetics? I've read of it in many books, but I'm looking for an explanation as clear as possible. Thanks in advance :)
 
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I didn't understand your question
You want to conduct the 3 point test As in?
If I'm not wrong this 2-point 3-point test is to map linked genes right? Or are you referring to something else?
 
Correctly ...It's the test related to map the genes
 
Easier to do it with an example.[emoji4]
Try it out on your own first, you'll enjoy trying to figure it out on your own
Take this, simple-
The gametes
ABC-390
abc-374
AbC-27
aBc-30
abC-8
ABc-5
Abc-81
aBC-85

Firstly start off by identifying parental genotype and then which is the result of single cross and which double cross.
 
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