Mark's karyotype is 47,XY+21. He could have been the result of a chromosome 21 nondisjunction in...

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Mark's karyotype is 47,XY+21. He could have been the result of a chromosome 21 nondisjunction in the: O A. 1st division of a normal zygote O B. 2nd division of a normal zygote O C. 1st meiosis of Mark's father's spermatogenesis OD. 2nd meiosis of Mark's mother's oogenesis. O E. Two of the above O F. Three of the above OG. All of the above Mark's karyotype is 47,XY+21. He could have been the result of a chromosome 21 nondisjunction in the: O A. 1st division of a normal zygote O B. 2nd division of a normal zygote O C. 1st meiosis of Mark's father's spermatogenesis OD. 2nd meiosis of Mark's mother's oogenesis. O E. Two of the above O F. Three of the above OG. All of the above

Answer rating: 100% (QA)

Answer A option is correct The type of error is called nondisjunction Usual... View the full answer