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6/7/13 Quiz Feedback | Genes and the Human Condition (From Behavior to Biotechnology) Feedback — Week 1 - Quiz 4 You submitted this quiz on Tue 23 Apr 2013 7:30 PM IST (UTC +0530). You got a score of 1.00 out of 1.00. Question 1 How many pairs of homologous chromosomes do humans have? Your Answer Score Explanation 2 14 23 ✔ 0.20 25 Total 0.20 / 0.20 Question 2 What do geneticists call different versions of the same gene? Your Answer Alleles Score ✔ Explanation 0.20 Loci SNPs Neutral Mutations Total 0.20 / 0.20 Question 3 https://class.coursera.org/genes-001/quiz/feedback?submission_id=13986 1/2 6/7/13 Quiz Feedback | Genes and the Human Condition (From Behavior to Biotechnology) True or false: A dominant allele masks or blocks a recessive allele. Your Answer True Score ✔ Explanation 0.20 False Total 0.20 / 0.20 Question 4 When a trait is expressed at different degree in different people with the genotype, it is called: Your Answer Score Explanation A broken gene Incomplete penetrance ✔ Variable expressivity 0.20 Dominance Total 0.20 / 0.20 Question 5 True or false: Pleiotropic genes affect a single physical trait. Your Answer Score Explanation True False ✔ Total https://class.coursera.org/genes-001/quiz/feedback?submission_id=13986 0.20 0.20 / 0.20 2/2