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BIOD 210
Portage BIOD 210-Genetics Module 6 Exam
Questions with Correct Verified Answers
Latest Update (2025/2026) Guaranteed Pass
1. Is Down syndrome considered a monosomy or trisomy
disorder?: Trisomy
2. What is the only trisomy disorder in which individuals live
longer than one year?: Down syndrome
3. What increases incidence of Down syndrome?:
maternal age 4. Which chromosome is responsible
for Down syndrome?: 21 5. True/False:
People with Down syndrome typically exhibit only a subset of the
stereotypical characteristics of the disorder.: True
6. What is the region of chromosome 21 that is responsible for
the phenotype of Down syndrome?: DSCR
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BIOD 210
7. Why do researchers think that people with Down syndrome
are protected from cancers that cause solid tumors?: - DSCR
region responsible for Down's also holds gene which blocks VEGF
- VEGF is what is responsible for vasculature of tumors
- If VEGF is blocked, tumors cannot develop
8. The most recent and non-invasive genetic test to determine
whether a pregnant mother is at risk for one of the trisomies is
called:: NIPT
9. Why does incidence of Down syndrome increase with
maternal age over 40?: - Women are born will all of their oocytes,
which remain in a paused stage of meiosis until ovulation
- As women age, the proteins holding chromosomes together decline,
leading to increased risk for disjunction and instability of chromosome
pairs - meiotic errors in chromosome 21 can cause Down syndrome
16. Maternal heredity::
10. Noninvasive prenatal genetic screening allows a mother
________ This is used to establish a ___________ to determine
the risks of genetic disorders.: - to donate a sample of blood
BIOD 210 2/9
BIOD 210
Portage BIOD 210-Genetics Module 6 Exam
Questions with Correct Verified Answers
Latest Update (2025/2026) Guaranteed Pass
1. Is Down syndrome considered a monosomy or trisomy
disorder?: Trisomy
2. What is the only trisomy disorder in which individuals live
longer than one year?: Down syndrome
3. What increases incidence of Down syndrome?:
maternal age 4. Which chromosome is responsible
for Down syndrome?: 21 5. True/False:
People with Down syndrome typically exhibit only a subset of the
stereotypical characteristics of the disorder.: True
6. What is the region of chromosome 21 that is responsible for
the phenotype of Down syndrome?: DSCR
BIOD 210 1/9
, 2
BIOD 210
7. Why do researchers think that people with Down syndrome
are protected from cancers that cause solid tumors?: - DSCR
region responsible for Down's also holds gene which blocks VEGF
- VEGF is what is responsible for vasculature of tumors
- If VEGF is blocked, tumors cannot develop
8. The most recent and non-invasive genetic test to determine
whether a pregnant mother is at risk for one of the trisomies is
called:: NIPT
9. Why does incidence of Down syndrome increase with
maternal age over 40?: - Women are born will all of their oocytes,
which remain in a paused stage of meiosis until ovulation
- As women age, the proteins holding chromosomes together decline,
leading to increased risk for disjunction and instability of chromosome
pairs - meiotic errors in chromosome 21 can cause Down syndrome
16. Maternal heredity::
10. Noninvasive prenatal genetic screening allows a mother
________ This is used to establish a ___________ to determine
the risks of genetic disorders.: - to donate a sample of blood
BIOD 210 2/9
