The duck billed platypus is an unusual mammal. If you examine the sex chromosomes of a female platypus you will find a total of 10 X chromosomes. Examining a male platypus finds 5 X chromosomes and 5 Y chromosomes. No other combinations are seen. Each of these five X chromosomes is unique as is each Y chromosome (i.e. X1 pairs only with X1 or Y1, X2 with X2 or Y2 and so on). Why is this unusual? What unusual event must happen during meiosis in a male platypus? (Think carefully about what happens in meiosis 1)
The duck billed platypus is an unusual mammal. If you examine the sex chromosomes of a female platypus you will find a total of 10 X chromosomes. Examining a male platypus finds 5 X chromosomes and 5 Y chromosomes. No other combinations are seen. Each of these five X chromosomes is unique as is each Y chromosome (i.e. X1 pairs only with X1 or Y1, X2 with X2 or Y2 and so on). Why is this unusual? What unusual event must happen during meiosis in a male platypus? (Think carefully about what happens in meiosis 1)
Human Biology (MindTap Course List)
11th Edition
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cecie Starr, Beverly McMillan
Chapter20: Chromosomes And Human Genetics
Section: Chapter Questions
Problem 3CT: People with Down syndrome have an extra copy of chromosome 21, for a total of 47 chromosomes....
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The duck billed platypus is an unusual mammal. If you examine the sex chromosomes of a female platypus you will find a total of 10 X chromosomes. Examining a male platypus finds 5 X chromosomes and 5 Y chromosomes. No other combinations are seen. Each of these five X chromosomes is unique as is each Y chromosome (i.e. X1 pairs only with X1 or Y1, X2 with X2 or Y2 and so on). Why is this unusual? What unusual event must happen during meiosis in a male platypus? (Think carefully about what happens in meiosis 1)
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