BIOD 210
BIOD 210 Module 6 Exam (Latest Update 2025 /
2026) Genetics | Questions & Answers | Grade A |
100% Correct. Portage Learning.
1. 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 syndrom
2. Maternal heredity::
- karyotype
3. NIPT (non-invasive prenatal testing) uses:: mother's blood to detect
cell free fetal DNA
4. aberration: Generic chromosome term for mutation
5. Insertion: Additional of a chromosomal segment
6. Deletion: Loss of a chromosomal segment
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, BIOD 210
7. Duplication: repeat of a chromosomal segment
8. Translocation: moves a segment from one chromosome to another
9. True/False:
Karyotyping of spontaneously aborted fetuses shows that many
monosomies do not survive to full term.: False
10. True/False:
Duplication of DNA sequences that are widely variable in numbers among
the same organism is referred to as copy number variation (CNV).: True
11. Trisomy disorders that survive to full term:: Down syndrome
Patau syndrome
Edwards syndrome
12. Do any human autosomal monosomy disorders survive to full
term?: No
13. intercalary deletion: deletion from the interior of the chromosome
14. terminal deletion: deletion at end of chromosome
2/9
BIOD 210 Module 6 Exam (Latest Update 2025 /
2026) Genetics | Questions & Answers | Grade A |
100% Correct. Portage Learning.
1. 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 syndrom
2. Maternal heredity::
- karyotype
3. NIPT (non-invasive prenatal testing) uses:: mother's blood to detect
cell free fetal DNA
4. aberration: Generic chromosome term for mutation
5. Insertion: Additional of a chromosomal segment
6. Deletion: Loss of a chromosomal segment
1/9
, BIOD 210
7. Duplication: repeat of a chromosomal segment
8. Translocation: moves a segment from one chromosome to another
9. True/False:
Karyotyping of spontaneously aborted fetuses shows that many
monosomies do not survive to full term.: False
10. True/False:
Duplication of DNA sequences that are widely variable in numbers among
the same organism is referred to as copy number variation (CNV).: True
11. Trisomy disorders that survive to full term:: Down syndrome
Patau syndrome
Edwards syndrome
12. Do any human autosomal monosomy disorders survive to full
term?: No
13. intercalary deletion: deletion from the interior of the chromosome
14. terminal deletion: deletion at end of chromosome
2/9
