Very rarely, one member of a pair of identical (monozygotic) twins will have Turner syndrome (XO) and the other member will be normal (XX). Which of the following statements best explain this phenomenon. There was a non-disjunction event during mitosis in the zygote. There was a non-disjunction event during meiosis in dad. there was a non-disjunction event during meiosis in either parent There was a non-disjunction event during meiosis in mom. Dad's X chromosome was inactivated, causing Turner syndrome.
Very rarely, one member of a pair of identical (monozygotic) twins will have Turner syndrome (XO) and the other member will be normal (XX). Which of the following statements best explain this phenomenon. There was a non-disjunction event during mitosis in the zygote. There was a non-disjunction event during meiosis in dad. there was a non-disjunction event during meiosis in either parent There was a non-disjunction event during meiosis in mom. Dad's X chromosome was inactivated, causing Turner syndrome.
Biology 2e
2nd Edition
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark
Chapter13: Modern Understandings Of Inheritance
Section: Chapter Questions
Problem 3VCQ: Figure 13.6 Which of the following statements about nondisjunction is true? Nondisjunction only...
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Oogenesis
The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase.
Cell Division
Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons:
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