Test
Ch. 6 Epigentics
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Preguntas del test (13)
11. What genetic process is likely responsible for the occurrence of asthma in only one of a pair of identical twins?
- Aa. Epigenetic modifications
- Bb. Genomic imprinting
- Cc. Transgenerational inheritance
- Dd. Methylation
22. Prader-Willi syndrome causes a chromosomal defect that is what?
- Aa. Initiated by postnatal exposure to a virus
- Bb. Inherited from the father
- Cc. Related to maternal alcohol abuse
- Dd. Transferred from mother to child
33. What can a malfunction in DNA methylation lead to?
- Aa. Hypothyroidism
- Bb. Blindness
- Cc. Cancer
- Dd. Diabetes mellitus
44. Which statement is true regarding the embryonic development of stem cells?
- Aa. They are already differentiated.
- Bb. They are referred to as housekeeping genes.
- Cc. They already demonstrate DNA sequencing.
- Dd. They are said to be totipotent.
55. When microRNA (miRNA) are methylated their messenger RNA (mRNA) targets are over- expressed. What would be the resulting effect on existing cancer?
- Aa. Cell death
- Bb. Metastasis
- Cc. Remission
- Dd. Relapse
66. What is the difference between DNA sequence mutations and epigenetic modifications?
- Aa. DNA sequence mutations can be directly altered.
- Bb. Leukemia is a result of only DNA sequence mutation.
- Cc. Epigenetic modifications potentially can be reversed.
- Dd. No known drug therapies are available for epigenetic modifications.
77. Which term refers to the silenced gene of a gene pair?
- Aa. Activated
- Bb. Altered
- Cc. Mutated
- Dd. Imprinted
88. What is most likely the shape of the face of a child diagnosed with Russell-Silver syndrome?
- Aa. Round
- Bb. Square
- Cc. Triangular
- Dd. Elongated
99. What are genes responsible for the maintenance of all cells referred to as?
- Aa. Universal
- Bb. Managerial
- Cc. Housekeeping
- Dd. Executive
1010. What is the belief regarding twins who adopt dramatically different lifestyles?
- Aa. They may experience very different aging processes.
- Bb. They will retain very similar methylation patterns.
- Cc. They will experience identical phenotypes throughout their lifespans.
- Dd. They may never demonstrate similar DNA sequences of their somatic cells.
1111. What do hypomethylation and the resulting effect on oncogenes result in?
- Aa. A decrease in the activity of the oncogene, thus suppressing cancer development.
- Bb. A deactivation of MLH1 to halt DNA repair.
- Cc. An increase in tumor progression from benign to malignant.
- Dd. An over-expression of microRNA, resulting in tumorigenesis.
1212. When a chromosome lacking 4 million base pairs is inherited from the mother, the child is at risk for developing which syndrome?
- Aa. Prader-Willi
- Bb. Angelman
- Cc. Beckwith-Wiedemann
- Dd. Russell-Silver
132. A diagnosis of Angelman syndrome in a child is supported by which assessment findings?(Select all that apply.)
- Aa. Small feet and hands
- Bb. Profound intellectual disability
- Cc. Obesity
- Dd. Ataxic gait
- Ee. History of seizures
Información
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- El usuario ha eliminado su información de asignaturas Test sobre Ch. 6 Epigentics, creado por Usuario eliminado el 04/02/2022.
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- Creado el 4 feb 2022 · actualizado el 5 feb 2022
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