BIOD 210 Module 6 Exam Genetics

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BIOD 210 Module 6 Exam Genetics Complete Questions and Answers

1.T/F: A chromosomal ablation is an alteration to the chromosome that

results in a change to the total number of chromosomes, deletions or additions to the chromosome, or even complete rearrangement of chromosomal segements.-

ANS: False

2.T/F: A chromosomal aberration is an alteration to the chromosome that

results in a change to the total number of chromosomes, deletions or addi- tions to the chromosome, or even complete rearrangement of chromosomal segments ANS true

3.T/F: Sex chromosomes can occur in pairs but also exist alone with

no phenotypic consequence ANS False 4.T/F: Sex chromosomes are the only exception to the rule that 1 / 2

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chromosomes occurs in pairs ANS true

5.T/F: Trisomy and monosomy in autosomal chromosomes are generally

not tolerated in animals or plants ANS False 6.What is the only trisomy disorder in which individuals routinely live longer than one year? The incidence of this disorder seems to increase with an increased age in which parent ANS Down Syndrome; Mother 7.Is down syndrome considered a monosomy or trisomy disorder? Does its incidence increase or decrease with maternal age ANS Trisomy disorder, mother's age increases

8.T/F: Individuals that are afflicted with Down syndrome typically exhibit

only a subset of the stereotypical characteristics of the disorder ANS True 9.The DSCR region thought to be typically responsible for the Down syn- drome phenotype is located on chromosome

: ANS 21

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