nursing 101 chapter 06 epigenetics and disease test bank nurunnahar womens collegenursing 101 chapter 06 epigenetics and disease test bank nurunnahar womens collegenursing 101 chapter 06 epigeneti
Written for
Nursing 101
All documents for this subject (552)
Seller
Follow
VEVA2K
Reviews received
Content preview
Chapter 6: Epigenetics and Disease
MULTIPLE CHOICE
1. What genetic process is likely responsible for the occurrence of asthma in only one of a
pair of identical twins?
a.
Epigenetic modifications c. Transgenerational inheritance
b.
Genomic imprinting d. Methylation
ANS: A
Epigenetic modifications can cause individuals with the same deoxyribonucleic acid (DNA)
sequences (such as identical twins) to have different disease profiles. The correct option is the
only one that accurately identifies the genetic process likely responsible for the occurrence of
asthma in only one of a pair of twins.
PTS: 1 REF: Page 183 | Page 185
2. Prader-Willi syndrome causes a chromosomal defect that is:
a.
Initiated by postnatal exposure to a virus
b.
Inherited from the father
c.
Related to maternal alcohol abuse
d.
Transferred from mother to child
ANS: B
Prader-Willi syndrome can be caused by a 4 Mb deletion of chromosome 15q when inherited
from the father. The other options do not accurately identify the reason for the chromosomal
damage that causes Prader-Willi syndrome.
PTS: 1 REF: Pages 187-188
3. A malfunction in DNA methylation can lead to:
a.
Hypothyroidism c. Cancer
b.
Blindness d. Diabetes mellitus
ANS: C
Aberrant methylation can lead to silencing of tumor-suppressor genes in the development of
cancer. No research supports a connection between hypothyroidism, blindness, or diabetes
mellitus to a malfunctioning of DNA methylation.
PTS: 1 REF: Page 183 | Page 186
4. Which statement is true regarding the embryonic development of stem cells?
a.
They are already differentiated.
b.
They are referred to as housekeeping genes.
c.
They already demonstrate DNA sequencing.
d.
They are said to be pluripotent.
ANS: D
Early in embryonic development, all cells of the embryo have the potential to become any
type of cell in the fetus or adult. These embryonic stem cells are said to be pluripotent. The
re- maining options are not true statements regarding embryonic stem cell development.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller VEVA2K. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.98. You're not tied to anything after your purchase.
