(100% Correct) Latest Update 2026/2027 | Graded A+
- Portage Learning
pts
Question 1
True or False: A chromosomal aberration is an alteration to the chromosome that results in a change to
the total number of chromosomes, deletions or additions to the chromosome, or even complete
rearrangement of chromosomal segments.
D True
O / 2 pts
Question 2
True or False: Sex chromosomes occur in pairs.
, True
D
False
Question 3
2/ 2 pts
True or False: Trisomy and monosomy in autosomal chromosomes is generally tolerated better in
animals than in plants.
False
2/
Question 5 2 pts
True or False: Individuals that are afflicted with Down syndrome typically exhibit most, if not all,
of the stereotypical characteristics of the disorder.
, False
Question 6 2/2 pts
The region of the chromosome 21 that is thought to be typically responsible for the phenotype of Down
syndrome is the
DSCR
Question 7 pts
Why do researchers think that individuals with Down syndrome are protected from cancers that
cause solid tumors?
Your Answer: