CCD Week 3 Questions with 100%
Correct Answers
Germ cells form gametes via what process Correct Answer: meiosis
Name the four possible abnormalities that can result from meiosis Correct
Answer: Nondisjunction, translocation, duplication, deletion
Trisomy 21 is also known as Correct Answer: Down's syndrome
What is the largest cause of Trisomy 21 Correct Answer: nondisjunction during
meiosis of maternal germ cell
What is the failure of homologous chromosomes to separate properly during
meiosis? Correct Answer: Nondisjunction
Nondisjunction results in either __________ or ___________ Correct Answer:
Monosomy; Trisomy
Indications to know with Trisomy 21 Correct Answer: Varied mental capacity;
congenital heart defects; leukemia, alzheimers
What genetic disorder presents with flat facial profiles, a simeon crease, and
short broad hands? Correct Answer: Down's syndrome
As maternal age increases, the risk of Trisomy 21 _______ Correct Answer:
increases
Trisomy 23 is also known as Correct Answer: Klinefelter's syndrome
What genetic disorder presents with tall stature, long limbs, and reduced
secondary sexual characteristics? Correct Answer: Klinefelter's sydrome
, What causes Klinefelter's syndrome? Correct Answer: Nondisjunction of the X
female chromosome
Trisomy 18 is also known as Correct Answer: Edward's syndrome
Monosomy 23 is also known as Correct Answer: Turner Syndrome
Genetic disorder that presents with short stature, aortic defects, webbed neck,
infertility, and poor secondary sex characteristics Correct Answer: Turner
Syndrome
Burkitt's Lymphoma, Non-hodgkin's lymphoma are both examples of genetic
disorders caused by _____________. Correct Answer: Translocation
Fragile X-Syndrome is a genetic disorder caused by ____________. Correct
Answer: Duplication
What genetic disorder presents with mental retardation, long faces, enlarged
ears? Correct Answer: Fragile X-syndrome
Cri-du Chat syndrome and Prader-Willi syndrome are genetic disorders that
result from ______________ Correct Answer: Deletion
What genetic disorder presents with obesity, mental retardation, hypotonia, and
testes deformities? Correct Answer: Prader-willi syndrome
Prader-willi syndrome is caused by the deletion of what chromosome? Correct
Answer: 15
Every gene is called an ________ Correct Answer: allele
Gene that occurs on one of the first 22 chromosomes Correct Answer:
autosomal
Correct Answers
Germ cells form gametes via what process Correct Answer: meiosis
Name the four possible abnormalities that can result from meiosis Correct
Answer: Nondisjunction, translocation, duplication, deletion
Trisomy 21 is also known as Correct Answer: Down's syndrome
What is the largest cause of Trisomy 21 Correct Answer: nondisjunction during
meiosis of maternal germ cell
What is the failure of homologous chromosomes to separate properly during
meiosis? Correct Answer: Nondisjunction
Nondisjunction results in either __________ or ___________ Correct Answer:
Monosomy; Trisomy
Indications to know with Trisomy 21 Correct Answer: Varied mental capacity;
congenital heart defects; leukemia, alzheimers
What genetic disorder presents with flat facial profiles, a simeon crease, and
short broad hands? Correct Answer: Down's syndrome
As maternal age increases, the risk of Trisomy 21 _______ Correct Answer:
increases
Trisomy 23 is also known as Correct Answer: Klinefelter's syndrome
What genetic disorder presents with tall stature, long limbs, and reduced
secondary sexual characteristics? Correct Answer: Klinefelter's sydrome
, What causes Klinefelter's syndrome? Correct Answer: Nondisjunction of the X
female chromosome
Trisomy 18 is also known as Correct Answer: Edward's syndrome
Monosomy 23 is also known as Correct Answer: Turner Syndrome
Genetic disorder that presents with short stature, aortic defects, webbed neck,
infertility, and poor secondary sex characteristics Correct Answer: Turner
Syndrome
Burkitt's Lymphoma, Non-hodgkin's lymphoma are both examples of genetic
disorders caused by _____________. Correct Answer: Translocation
Fragile X-Syndrome is a genetic disorder caused by ____________. Correct
Answer: Duplication
What genetic disorder presents with mental retardation, long faces, enlarged
ears? Correct Answer: Fragile X-syndrome
Cri-du Chat syndrome and Prader-Willi syndrome are genetic disorders that
result from ______________ Correct Answer: Deletion
What genetic disorder presents with obesity, mental retardation, hypotonia, and
testes deformities? Correct Answer: Prader-willi syndrome
Prader-willi syndrome is caused by the deletion of what chromosome? Correct
Answer: 15
Every gene is called an ________ Correct Answer: allele
Gene that occurs on one of the first 22 chromosomes Correct Answer:
autosomal
