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Errors & Exceptions in Chromosomal Inheritance

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Presentation on theme: "Errors & Exceptions in Chromosomal Inheritance"— Presentation transcript:

1 Errors & Exceptions in Chromosomal Inheritance
Xiu Ling Weng, Anne Wang, & Rachel Chen

2 Syndromes Resulting from Chromosome Change
A white tiger with Down syndrome A girl with Turner syndrome before and after operation

3

4 JEOPARDY BOARD Easy Medium Hard 1 2 3

5 Easy - 1 Candy Question A chromosome segment that has no centromere which was broken off and lost during segregation has undergone Duplication Inversion Deletion

6 Easy - 1 Candy Answer C. Deletion

7 Free Candy Easy - 1 Candy Question

8 Which of the following accurately describes translocation?
Easy- 1 Candy Question Which of the following accurately describes translocation? The transfer of one piece of chromosome to another chromosome A chromosome fragment breaking off and then reattaching to its original position Centromere duplication

9 The transfer of a piece of the chromosome to another chromosome
Easy - 1 Candy Answer The transfer of a piece of the chromosome to another chromosome

10 Free Candy Easy - 1 Candy Question

11 Are all chromosomal abnormalities inherited?
Easy - 1 Candy Question Are all chromosomal abnormalities inherited?

12 Easy - 1 Candy Answer Only some chromosomal abnormalities are inherited, but disorders such as Turner Syndrome and Down syndrome are not.

13 Medium - 2 Candy Question
Which organelle with its DNA is inherited from parent to daughter cell without having to go through meiosis? A. Nucleus B. Plasma membrane C. Mitochondria

14 Medium - 2 Candy Answer C. Mitochondria

15 Medium - 2 Candy Question
Free Candy

16 Medium - 2 Candy Question
What caused the gametes to have an abnormal number of chromosomes as shown in the picture above? Independent Assortment - formation of random combinations of chromosomes in meiosis and of genes on different pairs of homologous chromosomes Crossing Over - the exchange of genes between homologous chromosomes Nondisjunction - when homologous chromosomes fail to separate during meiosis

17 Medium - 2 Candy Answer C. Nondisjunction - when homologous chromosomes fail to separate during meiosis

18 Medium - 2 Candy Question
Free Candy

19 Medium - 2 Candy Question
Which of the following term describes an organism with more than two complete sets of chromosomes? Diploid Polyploidy Trisomic cell

20 Medium - 2 Candy Answer B. Polyploidy

21 Hard - 3 Candy Question What is the name of the process in which one copy of a gene is silenced due to its parental origin? A. DNA methylation B. Genetic imprinting C. Epigenetics

22 Hard - 3 Candy Answer B. Genetic Imprinting

23 Hard - 3 Candy Question Free Candy

24 Hard - 3 Candy Question Which of the following syndromes are caused by chromosomal abnormality? Turner Syndrome Down Syndrome Patau Syndrome All of the above

25 Hard - 3 Candy Answer All of the above

26 Hard - 3 Candy Question Free Candy

27 Hard - 3 Candy Question The chromosomal alteration that is responsible for Klinefelter’s syndrome causing a male to have some evident female characteristics is … (genotype)

28 Hard - 3 Candy Answer XXY


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