Question

A further study finds that after 10 generations (≈ 200 years) a lot of inbreeding has...

A further study finds that after 10 generations (≈ 200 years) a lot of inbreeding has taken place in the population. Two subpopulations (populations A and B), consisting of 30% and 70% of the general population, respectively, have formed. Within population A, prevalence of the recessive gene is 40%, whereas in population B it is 10%.

Suppose that in 25% of marriages both people are from population A, in 65% both are from population B, and in 10% there is one partner from population A and one from population B.

Suppose that a baby is born with a birth defect, but the baby’s ancestry is unknown. What is the posterior probability that the baby will have

1. both parents from population A?

2. both parents from population B?

3. mixed ancestry (i.e. one parent from population A and one from population B)?

0 0
Add a comment Improve this question
Answer #1

Given:

Probability of Population A = 0.30

Probability of Population A, prevalence of the recessive gene = 0.40

Probability of Marriages where both persons are from Population A = 0.25

Probability of Population B = 0.70

Probability of Population B, prevalence of the recessive gene = 0.10

Probability of Marriages where both persons are from Population B = 0.65

Probability of Marriages where one person is from Population A and one person is from Population B = 0.10

1. Probability (Both Parents from Population A) = Probability of Population A * Probability of Marriages where both persons are from Population A

Probability (Both Parents from Population A) = 0.30 * 0.25 = 0.075 = 7.5 %

2. Probability (Both Parents from Population B) = Probability of Population B * Probability of Marriages where both persons are from Population B

Probability (Both Parents from Population B) = 0.70 * 0.65 = 0.455 = 45.5%

3. Probability (Mixed Ancestry) = Probability of Population A * Probability of Population B * Probability of Marriages where one person is from Population A and one person is from Population B

Probability (Mixed Ancestry) = 0.30 * 0.70 * 0.10 = 0.021 = 2.1%

Add a comment
Know the answer?
Add Answer to:
A further study finds that after 10 generations (≈ 200 years) a lot of inbreeding has...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • Apgar scores are a measurement of an infant’s overall health taken a few minutes after birth. The score ranges from 0 (d...

    Apgar scores are a measurement of an infant’s overall health taken a few minutes after birth. The score ranges from 0 (death) to 10 (perfect health) and is based on tests of the baby’s heart rate, breathing rate, muscle tone, color of skin, etc. A critic gives three reasons why the Apgar score isn’t a perfect measurement: REASON 1 – There are many other important facets of health that aren’t measured by the score. REASON 2 – A doctor’s rating...

  • 6) A colorblind female, blood type A married 2 different men. One man (#1) had type...

    6) A colorblind female, blood type A married 2 different men. One man (#1) had type AB blood and was colorblind. The other man (#2) had type B blood and normal color vision. Three offspring resulted from the marriages. If possible, determine the father of each of the following offspring. a) female, Type A blood, normal color vision b) male, Type AB blood, colorblind c) female, Type B blood, colorblind In tomatoes, red fruit color is dominant to yellow. Suppose...

  • 7. If offspring exhibit a 3:1 phenotypic are the parents' genotypes? f purple flower color in...

    7. If offspring exhibit a 3:1 phenotypic are the parents' genotypes? f purple flower color in a plant is controlled by the allele Rand white flower.com by the allele, which flower color is dominant? and white flower color is controlled 9. If a heterozygous purple flowered plant is crossed with a white flowered plant w phenotypes of their offspring? as 10. If the offspring of a cross are 50 purple-flowered plants and 14 white-flowered plants, what are the genotypes of...

  • i need some help with this lab ASAP please! HUMAN GENETICS It to study because of...

    i need some help with this lab ASAP please! HUMAN GENETICS It to study because of the relatively long life span and the limited number In addition, the number of chromosome pairs (23) increases the possible number of genetic combinations. It is possible, however, to take a sample from human frequency of a trait and the possible ways a given trait is inherited. populations to estimate the Objectives .Investigate the inheritance of some human traits. Estimate the frequency of selected...

  • Linear Algebra The question is actually on the third picture, i’m not sure if the information...

    Linear Algebra The question is actually on the third picture, i’m not sure if the information on picture 1 and 2 is supposed to help with the problem. Please complete Q9. You may need information from Q7. Please clearly label a b. Total 2 questions. Please complete Q 9. Some problems in genetics can be solved using Markov chains. For example, if we know the genotype distribution of the present generation, call it xo, we can use the transition matrix...

  • Merritt, 2016 BIO 1511 NAME:F. I.) 10-15 Post Lab #10 Post-LabE19: BASIC GENETICS PROBLEMS # Correct...

    Merritt, 2016 BIO 1511 NAME:F. I.) 10-15 Post Lab #10 Post-LabE19: BASIC GENETICS PROBLEMS # Correct Answers: (16) (Last) Lab Day: MWF(circle one) Solve the genetics problems in this handout. For all problems, assume complete dominance, assume one gene codes for one trait, and assume there are only 2 different alleles possible for each gene (dominant or recessive) 1. If a homozygous dominant red flowered plants are crossed with homozy phenotypes and genotypes of the offspring? Show the genotypes of...

  • 10. The Beck & Watson article is a Group of answer choices quantitative study qualitative study...

    10. The Beck & Watson article is a Group of answer choices quantitative study qualitative study 11. Beck & Watson examined participants' experiences and perceptions using what type of research design? Group of answer choices particpant obersvation phenomenology 12. Select the participants in the Beck & Watson study Group of answer choices Caucasian women with 2-4 children Caucasian pregnant women 13. In the Beck & Watson study, data was collected via a(n) Group of answer choices internet study focus group...

  • Could someone check my answers, please? 1. Suppose that a species of fish has split into...

    Could someone check my answers, please? 1. Suppose that a species of fish has split into two populations in a lake: one on the eastern side and one on the western side. How could you determine whether the two populations constitute different species? A. Examine the populations for morphological, color, or other physical differences. B. Examine the populations for different genetic markers and allele frequencies. C. Attempt to breed members from the two populations in captivity. D. Introduce members from...

  • I. Case Study Mr. and Mrs. Vanderveer owned a farm in the Hudson Valley in lower...

    I. Case Study Mr. and Mrs. Vanderveer owned a farm in the Hudson Valley in lower New York State. They were both descended from Dutch settlers who came to Hudson Valley in the mid-17th century. There were multiple consanguineous marriages among their ancestors, and Mr. and Mrs. Vanderveer were distantly related to each other. At the time of this case, they had five children- three girls and two boys. Their youngest daughter, Susan, was 10 months old when she developed...

  • Match the following terms with the appropriate description below: a. alleles b. autosomes c. dominant allele...

    Match the following terms with the appropriate description below: a. alleles b. autosomes c. dominant allele d. genotype e. heterozygous f. homozygote g. phenotype h. recessive allele i. sex chromosomes 1. ________________ genetic make-up 2. ________________ how genetic make-up is expressed 3. ________________ chromosomes that dictate most body characteristics 4. ________________ alternative forms of the same gene 5. ___________an individual bearing two alleles that are the same for a particular trait 6. ________________ an allele that is expressed, whether in...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT