FOR THIS QUESTION, EXCEL *MUST* BE USED TO CALCULATE THE P-VALUE FOR CHI SQUARED! Here is allink to the Khan Academy page on dihybrid crosses and gene mapping. Here is a link to the Math Bench web page on performing chi-squared tests. There are two alleles for the arr gene, A and a. There are also two alleles for bee gene, B and b. The two genes are on a chromosome that is 1.5 micrometers in length, but it has yet to be determined if the two genes are linked. Below is data from a study to determine if the genes are linked, and if so, how far apart the genes are on the chromosome. An organism that is heterozygous for both the arr gene and the bee gene is crossed with an organism that is homozygous recessive for both genes. Using this information, it is possible to calculate the expected phenotypic ratio of the offspring of the two organisms, assuming the two genes are *NOT* linked. If the genes are linked, the offspring will not exhibit th Link to Kahn Academy tutorial on linked genes 1. The arr and bee genes are independent of each other. 2. The arr and bee genes are linked. Above are the two hypotheses. Which of the two hypotheses is the null hypothesis? • Enter either 1 or 2 in the answer box The table below depicts the observed genotypic abundances of the offspring. Genotype Abundance Aa Bb 40 Aa bb 30 40 aa Bb 35 aa bb Use the predicted and observed data to perform a chi-squared test to assess if two genes arr and bee are linked. Below is a video about how to perform the calculations in Excel. ChiSquaredInExcel (05:24) 05:24 20 Feb 2018 05:04 PM Name: Duration: Added: Joseph Battistelli http://mathbench.umd.edu/modules/statistical-tests_chisquare..What is your calculated value of chi squared? chi square, dihybrid cross Added By: Description: Tags: Watch Media Report your answer to FOUR decimal places • FURTHER CALCULATIONS SHOULD BE PERFORMED IN EXCEL ON THE UNROUNDED NUMBER What is the P-value determined using the formula =(1-chisq.dist(x, df, TRUE)) in Excel, where x is the calculated value of chi squared, df is the degrees of freedom, and TRUE indicates a cumulative distribution function. • Report your answer to FOUR decimal places Using an alpha value of 0.05, do you fail to reject or reject the null hypothesis? Enter either fail to reject, or reject. If the genes are linked, use the percent of offspring that experienced crossing over to determine the distance between the two genes in micrometers. If the genes are not linked, enter n/a in the box below micrometers • Report your answer in micrometers • Report your answer to four decimal places Or enter n/a if the genes are not linked

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This my third time posting the same question. Because no one answer it straight to me. I already answered the question. Could you please tell me which one of these are not correct. and if so Could you please tell me the correct answer first then explain it.

Also could you please highlight the correct answer for each one

FOR THIS QUESTION, EXCEL *MUST* BE USED TO CALCULATE THE P-VALUE FOR CHI SQUARED!
Here is allink to the Khan Academy page on dihybrid crosses and gene mapping. Here is a link to the Math Bench web page on performing chi-squared tests.
There are two alleles for the arr gene, A and a. There are also two alleles for bee gene, B and b. The two genes are on a chromosome that is 1.5 micrometers in length,
but it has yet to be determined if the two genes are linked. Below is data from a study to determine if the genes are linked, and if so, how far apart the genes are on
the chromosome.
An organism that is heterozygous for both the arr gene and the bee gene is crossed with an organism that is homozygous recessive for both genes.
Using this information, it is possible to calculate the expected phenotypic ratio of the offspring of the two organisms, assuming the two genes are *NOT* linked. If the genes
are linked, the offspring will not exhibit th Link to Kahn Academy tutorial on linked genes
1. The arr and bee genes are independent of each other.
2. The arr and bee genes are linked.
Above are the two hypotheses. Which of the two hypotheses is the null hypothesis?
• Enter either 1 or 2 in the answer box
The table below depicts the observed genotypic abundances of the offspring.
Genotype Abundance
Aa Bb
40
Aa bb
30
40
aa Bb
35
aa bb
Use the predicted and observed data to perform a chi-squared test to assess if two genes arr and bee are linked. Below is a video about how to perform the calculations in
Excel.
ChiSquaredInExcel (05:24)
05:24
20 Feb 2018 05:04 PM
Name:
Duration:
Added:
Joseph Battistelli
http://mathbench.umd.edu/modules/statistical-tests_chisquare..What is your calculated value of chi squared?
chi square, dihybrid cross
Added By:
Description:
Tags:
Watch Media
Report your answer to FOUR decimal places
• FURTHER CALCULATIONS SHOULD BE PERFORMED IN EXCEL ON THE UNROUNDED NUMBER
What is the P-value determined using the formula =(1-chisq.dist(x, df, TRUE)) in Excel, where x is the calculated value of chi squared, df is the degrees of freedom, and TRUE
indicates a cumulative distribution function.
• Report your answer to FOUR decimal places
Transcribed Image Text:FOR THIS QUESTION, EXCEL *MUST* BE USED TO CALCULATE THE P-VALUE FOR CHI SQUARED! Here is allink to the Khan Academy page on dihybrid crosses and gene mapping. Here is a link to the Math Bench web page on performing chi-squared tests. There are two alleles for the arr gene, A and a. There are also two alleles for bee gene, B and b. The two genes are on a chromosome that is 1.5 micrometers in length, but it has yet to be determined if the two genes are linked. Below is data from a study to determine if the genes are linked, and if so, how far apart the genes are on the chromosome. An organism that is heterozygous for both the arr gene and the bee gene is crossed with an organism that is homozygous recessive for both genes. Using this information, it is possible to calculate the expected phenotypic ratio of the offspring of the two organisms, assuming the two genes are *NOT* linked. If the genes are linked, the offspring will not exhibit th Link to Kahn Academy tutorial on linked genes 1. The arr and bee genes are independent of each other. 2. The arr and bee genes are linked. Above are the two hypotheses. Which of the two hypotheses is the null hypothesis? • Enter either 1 or 2 in the answer box The table below depicts the observed genotypic abundances of the offspring. Genotype Abundance Aa Bb 40 Aa bb 30 40 aa Bb 35 aa bb Use the predicted and observed data to perform a chi-squared test to assess if two genes arr and bee are linked. Below is a video about how to perform the calculations in Excel. ChiSquaredInExcel (05:24) 05:24 20 Feb 2018 05:04 PM Name: Duration: Added: Joseph Battistelli http://mathbench.umd.edu/modules/statistical-tests_chisquare..What is your calculated value of chi squared? chi square, dihybrid cross Added By: Description: Tags: Watch Media Report your answer to FOUR decimal places • FURTHER CALCULATIONS SHOULD BE PERFORMED IN EXCEL ON THE UNROUNDED NUMBER What is the P-value determined using the formula =(1-chisq.dist(x, df, TRUE)) in Excel, where x is the calculated value of chi squared, df is the degrees of freedom, and TRUE indicates a cumulative distribution function. • Report your answer to FOUR decimal places
Using an alpha value of 0.05, do you fail to reject or reject the null hypothesis?
Enter either fail to reject, or reject.
If the genes are linked, use the percent of offspring that experienced crossing over to determine the distance between the two genes in micrometers. If the genes are not
linked, enter n/a in the box below
micrometers
• Report your answer in micrometers
• Report your answer to four decimal places
Or enter n/a if the genes are not linked
Transcribed Image Text:Using an alpha value of 0.05, do you fail to reject or reject the null hypothesis? Enter either fail to reject, or reject. If the genes are linked, use the percent of offspring that experienced crossing over to determine the distance between the two genes in micrometers. If the genes are not linked, enter n/a in the box below micrometers • Report your answer in micrometers • Report your answer to four decimal places Or enter n/a if the genes are not linked
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