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19 Cards in this Set
- Front
- Back
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Theca cells are the testicular equivalent to what cells?
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Leydig cells
produce testosterone |
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What occurs in 17-alpha hydroxylase deficiency in males?
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amibgous genitalia
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What deficiency is associated with salt-wasting?
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21-alpha-hydroxylase deficiency
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What deficiency is associated with HTN and hypokalemia?
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11-beta-hydroxylase
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Insulin generally has an anabolic or catabolic action?
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anabolic
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A base (purine or pyrimidine) linkes to a pentose sugar is termed what?
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nucleoside
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Lesch-Nyhan syndrome is defective in what enzyme?
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phosphoribosyl transferase
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In bacterial gene expression, RNA polymerase binds to what?
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the promoter, located upstream of the operon
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In eukaryotic gene transcription, RNA polymerase doesn't recognize promoter in absence of what?
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transcription factor that binds to TATA box
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What is meant by polycistronic?
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prokaryotic mRNA is polycistronic
encodes multiple proteins |
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Name the polymerase that joins Okazaki fragments of lagging strand in replication.
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ligase
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What is the polymerase that produces the leading strand in eukaryotic replication?
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DNA polymerase delta
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From what germ layer is the pancreas, liver and thymus derived from?
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endoderm
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What is the fetal remnant of the ductus arteriosus?
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ligamentum arteriosus
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Muscles of facial expression are derived from what branchial arch?
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2nd arch
hyoid arch Reichert |
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Parafollicular C cells of the thyroid are dervied from which pharyngeal pouch?
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five
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Ureteric bud develops into what?
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bladder trigonum
ureter collecting tubules |
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By which foramen do the branches of cranial nerve V exit?
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opthalamic: superior orbital fissure
maxillary: foramen rotundum mandibular: foramen ovale |
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Abducens paralysis causes inability to what?
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unable to abduct eye on affected side
diplopia |
