1) A person has total of 45 chromosomes (a normal 14, a normal
21, and an abnormal fused 14 /21, plus 21 normal pair of other
chromosomes). Which of the following statement is correct to this
person?
A, genotypically normal, but phenotypically abnormal as a
carrier.
B. both genotypically and phenotypically normal as a
carrier.
C. genotypically abnormal, but phenotypically normal as a
carrier.
D. both genotypically and phenotypically abnormal as a
carrier.
2) A person has total of 46 chromosomes (a normal 14,
and an abnormal 14 fused with 21, plus 22 normal pair of other
chromosomes including normal pair of 21). Which of the following
statement is correct to this person
A, genotypically normal, but phenotypically abnormal
as Familial Down syndrome due to extra copy of 14.
B. genotypically normal, but phenotypically
abnormal as Familial Down syndrome due to extra copy of
21.
C. genotypically normal, but phenotypically
abnormal as Familial Down syndrome due to extra copy of 14
D. genotypically normal, but phenotypically abnormal as Familial
Down syndrome due to extra copy of 21.