Chromosome Abnormalities Test Questions and Answers
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Course
Chromosome Abnormalities
Institution
Chromosome Abnormalities
Chromosome Abnormalities Test Questions and Answers
monosomy X (turner syndrome) - Answer-what accounts for 20% of chromosome abnormalities in miscarriages
triploidy - Answer-what accounts for 15% of chromosome abnormalities in miscarriages
double trisomies - Answer-what accounts for 0.7% o...
Chromosome Abnormalities Test
Questions and Answers
monosomy X (turner syndrome) - Answer-what accounts for 20% of chromosome
abnormalities in miscarriages
triploidy - Answer-what accounts for 15% of chromosome abnormalities in miscarriages
double trisomies - Answer-what accounts for 0.7% of chromosome abnormalities in
miscarriages
25 - Answer-what is the survival rate (percentage) to birth of viable autosomal trisomy
conceptions in trisomy 21
5 - Answer-what is the survival rate (percentage) to birth of viable autosomal trisomy
conceptions in trisomy 18
2.5 - Answer-what is the survival rate (percentage) to birth of viable autosomal trisomy
conceptions in trisomy 13
1 - Answer-what is the survival rate (percentage) to birth of viable autosomal trisomy
conceptions in turner syndrome
92, 3/1 - Answer-in what percentage of maternal and what meiotic stage do most
aneuploidies originate in trisomy 21
97, 1/2 - Answer-in what percentage of maternal and what meiotic stage do most
aneuploidies originate in trisomy 18
82, 2/1 - Answer-in what percentage of maternal and what meiotic stage do most
aneuploidies originate in trisomy 13
100, all M1 - Answer-in what percentage of maternal and what meiotic stage do most
aneuploidies originate in trsiomy 16
30 - Answer-in what percentage of maternal parent do most aneuploidies originate in
turner
54, 3/1 - Answer-in what percentage of maternal and what meiotic stage do most
aneuploidies originate in XXY
, 90, 3/1 - Answer-in what percentage of maternal and what meiotic stage do most
aneuploidies originate in XXX
1 in 800 - Answer-how many live births are affected by down syndrome
60 - Answer-what is the life expectancy of someone with down syndrome
1-2 - Answer-what is the risk for recurrence in trisomy 21
10-20 - Answer-what is the risk for recurrence if there are 2 affected children with
trisomy 21
sex chromosome aneuploidies - Answer-what affects 1 in 500 live births (most common)
and abnormalities involve X and Y
paternally inherited - Answer-from which parent are 90% of triploidy inheritied from
diploid sperm and normal egg - Answer-what are 25% of triploidy caused by
dispermy (1 egg and 2 sperm) - Answer-what are 65% of triploidy caused by
diploid egg and normal sperm - Answer-what are 10% of triploidy caused by
sex chromosome abnormalities - Answer-what is not usually noticed in the majority of
patients until later in life and there are no mental retardation or birth defects associated
with this
sex chromosome abnormalities - Answer-what does these clues suggest: delayed
puberty onset, amenorrhea, and infertility
klinefelter - Answer-what occurs in 1 in 1000 male births
aneuploidy - Answer-what is the addition or loss of one chromosome from the normal
complement
monosomy - Answer-what is an aneuploid condition in which a specific chromosome is
present in only a single copy, giving the individual a total of 45 chromosomes
trisomy - Answer-what is an aneuploid condition in which the individual has an extra
copy of one chromosome, for a total of 47 chromosomes in each cell
polyploidy - Answer-what is a chromosome abnormality in which the number of
chromosomes in a cell is a multiple of 23 but is greater than the diploid number
triploidy - Answer-a polyploid condition in which the individual has three copies of each
chromosome in each cell, for a total of 69 chromosomes
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