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35292037
Ch. 6 Epigentics
Descrição
patho 1 Quiz sobre Ch. 6 Epigentics, criado por Esmeralda Espitia em 04-02-2022.
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patho 1
Quiz por
Esmeralda Espitia
, atualizado more than 1 year ago
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Esmeralda Espitia
mais de 2 anos atrás
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Resumo de Recurso
Questão 1
Questão
1. What genetic process is likely responsible for the occurrence of asthma in only one of a pair of identical twins?
Responda
a. Epigenetic modifications
b. Genomic imprinting
c. Transgenerational inheritance
d. Methylation
Questão 2
Questão
2. Prader-Willi syndrome causes a chromosomal defect that is what?
Responda
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
Questão 3
Questão
3. What can a malfunction in DNA methylation lead to?
Responda
a. Hypothyroidism
b. Blindness
c. Cancer
d. Diabetes mellitus
Questão 4
Questão
4. Which statement is true regarding the embryonic development of stem cells?
Responda
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 totipotent.
Questão 5
Questão
5. When microRNA (miRNA) are methylated their messenger RNA (mRNA) targets are over- expressed. What would be the resulting effect on existing cancer?
Responda
a. Cell death
b. Metastasis
c. Remission
d. Relapse
Questão 6
Questão
6. What is the difference between DNA sequence mutations and epigenetic modifications?
Responda
a. DNA sequence mutations can be directly altered.
b. Leukemia is a result of only DNA sequence mutation.
c. Epigenetic modifications potentially can be reversed.
d. No known drug therapies are available for epigenetic modifications.
Questão 7
Questão
7. Which term refers to the silenced gene of a gene pair?
Responda
a. Activated
b. Altered
c. Mutated
d. Imprinted
Questão 8
Questão
8. What is most likely the shape of the face of a child diagnosed with Russell-Silver syndrome?
Responda
a. Round
b. Square
c. Triangular
d. Elongated
Questão 9
Questão
9. What are genes responsible for the maintenance of all cells referred to as?
Responda
a. Universal
b. Managerial
c. Housekeeping
d. Executive
Questão 10
Questão
10. What is the belief regarding twins who adopt dramatically different lifestyles?
Responda
a. They may experience very different aging processes.
b. They will retain very similar methylation patterns.
c. They will experience identical phenotypes throughout their lifespans.
d. They may never demonstrate similar DNA sequences of their somatic cells.
Questão 11
Questão
11. What do hypomethylation and the resulting effect on oncogenes result in?
Responda
a. A decrease in the activity of the oncogene, thus suppressing cancer development.
b. A deactivation of MLH1 to halt DNA repair.
c. An increase in tumor progression from benign to malignant.
d. An over-expression of microRNA, resulting in tumorigenesis.
Questão 12
Questão
12. When a chromosome lacking 4 million base pairs is inherited from the mother, the child is at risk for developing which syndrome?
Responda
a. Prader-Willi
b. Angelman
c. Beckwith-Wiedemann
d. Russell-Silver
Questão 13
Questão
2. A diagnosis of Angelman syndrome in a child is supported by which assessment findings?(Select all that apply.)
Responda
a. Small feet and hands
b. Profound intellectual disability
c. Obesity
d. Ataxic gait
e. History of seizures
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