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4. The two Horny Legged Beasts above have bred several times and have had the following offspring: Long legs and small horn: 44 Long legs and big horn: 50 Short legs and small horn: 16 Short legs and big horn: 18 Carry out a Chi Squared test to see if these values are close enough to the expected ratio to be in support of the dihybrid model. (P values to the right)

4. The two Horny Legged Beasts above have bred several times and have had the following offspring: Long legs and small horn: 44 Long legs and big horn: 50 Short legs and small horn: 16 Short legs and big horn: 18 Carry out a Chi Squared test to see if these values are close enough to the expected ratio to be in support of the dihybrid model. (P values to the right)

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Horny legged beasts The Horny legged beasts are known for their highly variable horn size and leg length. In fact Zoologists have been studying the genetics of these traits for years. A lot is now known about how these characters are handed down through the generations. We now known that the trait for long legs is dominant over short legs and a big horn is a ressesive character. The male at far left here is known to be heterozygous for long legs and homozygous for horn size. The female is heterozygous for both horn size and leg length. Significance Level QUESTIONS: df 0.10 0.05 0.025 0.01 0.005 1. Can you work out the pheotype and genotype ratio of any offspring they may have? 2. Typically Horny Legged Beasts give birth to 32 young at a time. How many would you expect to have short legs and a big horn? 1 2.7055 3.8415 5.0239 6.6349 7.8794 2 4.6052 5.9915 7.3778 9.2104 10.5965 3 6.2514 7.8147 9.3484 11.3449 12.8381 4 7.7794 9.4877 11.1433 13.2767 14.8602 5 9.2363 11.0705 12.8325 15.0863 16.7496 6 10.6446 12.5916 14.4494 16.8119 8.5475 3. What assumptions are you making about the genes in order to come to your conclusions in question 2? 4. The two Horny Legged Beasts above have bred several times and have had the following offspring: Long legs and small horn: 44 Long legs and big horn: 50 Short legs and small horn: 16 !Remember! Short legs and big horn: 18 If your chi squared value is below the value indicated in the table you can say that the dihybid model holds up. If above you have to reject the dihybrid model - something else is going on... Carry out a Chi Squared test to see if these values are close enough to the expected ratio to be in support of the dihybrid model. (P values to the right)
Transcribed Image Text:Horny legged beasts The Horny legged beasts are known for their highly variable horn size and leg length. In fact Zoologists have been studying the genetics of these traits for years. A lot is now known about how these characters are handed down through the generations. We now known that the trait for long legs is dominant over short legs and a big horn is a ressesive character. The male at far left here is known to be heterozygous for long legs and homozygous for horn size. The female is heterozygous for both horn size and leg length. Significance Level QUESTIONS: df 0.10 0.05 0.025 0.01 0.005 1. Can you work out the pheotype and genotype ratio of any offspring they may have? 2. Typically Horny Legged Beasts give birth to 32 young at a time. How many would you expect to have short legs and a big horn? 1 2.7055 3.8415 5.0239 6.6349 7.8794 2 4.6052 5.9915 7.3778 9.2104 10.5965 3 6.2514 7.8147 9.3484 11.3449 12.8381 4 7.7794 9.4877 11.1433 13.2767 14.8602 5 9.2363 11.0705 12.8325 15.0863 16.7496 6 10.6446 12.5916 14.4494 16.8119 8.5475 3. What assumptions are you making about the genes in order to come to your conclusions in question 2? 4. The two Horny Legged Beasts above have bred several times and have had the following offspring: Long legs and small horn: 44 Long legs and big horn: 50 Short legs and small horn: 16 !Remember! Short legs and big horn: 18 If your chi squared value is below the value indicated in the table you can say that the dihybid model holds up. If above you have to reject the dihybrid model - something else is going on... Carry out a Chi Squared test to see if these values are close enough to the expected ratio to be in support of the dihybrid model. (P values to the right)
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