ANTH 246 - Week 4 Activity.pdf - Week 4 Activity Attempt...

This preview shows page 1 - 4 out of 22 pages.

2/20/21, 16 : 12 Week 4 Activity: Attempt review Page 1 of 22 ? attempt=19767046&cmid=5453689 Dashboard / My courses / ANTH 246 ONL SP21 / Week 4 / Week 4 Activity Started on Saturday, February 20, 2021, 4 : 04 PM State Finished Completed on Saturday, February 20, 2021, 4 : 09 PM Time taken 4 mins 58 secs Information Did you complete the Practice for Week 4 Activity first ? The practice is not graded and can ensure you understand how to do the calculations ! For this Activity you get 2 attempts. It is extremely important that you do not hit the back arrow icon on your browser to try to re answer a question/look at old answers, as it will count this as your second attempt !!! As you go through the questions, keep a record of your answers in a separate document for reference, so that when you start your second attempt at the Activity, you can know what you answered before ! Part 1: Calculating Genotype Frequencies and RMP Do the calculations and answer the questions on the following slides. You may find it helpful to record your answers to each question as they may be useful for answering later questions.
2/20/21, 16 : 12 Week 4 Activity: Attempt review Question Correct Points out of 1.00 Here is an example using 3 CODIS STR results. DNA evidence was found at a crime scene. Due to the poor quality of the DNA sample, only 3 of the 13 CODIS STRs could be determined. The table below lists the analytical results for the three STRs in the second and third columns (Allele A and Allele B). STR Locus Allele A Allele B P(Allele A) P(Allele B) D3S1358 11 12 0.5 0.2 TH01 4 4 0.5 0.5 D21S11 7 10 0.1 0.5 Which STR is homozygous for the DNA evidence ? Recall that homozygosity means that for a given locus, an individual has 2 identical alleles. Select one: 1
Page 2 of 22 ? attempt=19767046&cmid=5453689
Question Correct D3S1358 11 12 0.5 0.2 TH01 4 4 0.5 0.5 D21S11 7 10 0.1 0.5 In this table, the probabilities for the DNA evidence's alleles have already been established based on population frequencies in the CODIS database and are presented in the 2 far right columns. Based on the probabilities (i.e. frequencies) for the various alleles for all 3 STRs, which allele is the rarest in the source population ? Select one: 2 Points out of 1.00 STR LocusAllele AAllele BP(Allele A)P(Allele B) D3S1358 11 12 0.5 0.2 TH01 4 4 0.5 0.5 D21S11 7 10 0.1 0.5 In this table, the probabilities for the DNA evidence's alleles have already been established based on population frequencies in the CODIS database and are presented in the 2 far right columns. Based on the probabilities (i.e. frequencies) for the various alleles for all 3 STRs, which allele is the rarest in the source population ? Select one:
2/20/21, 16 : 12 Week 4 Activity: Attempt review Question Correct Points out of 1.00 STR LocusAllele AAllele BP(Allele A)P(Allele B) D3S1358 11 12 0.5 0.2 TH01 4 4 0.5 0.5 D21S11 7 10 0.1 0.5 And the most common allele(s) ? Select one: 3
Page 3 of 22 ? attempt=19767046&cmid=5453689 Question Correct Points out of 1.00 4

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture