A Congenital Defect in Which the Urethra Opens on the Dorsum

question 33

Multiple Choice

A congenital defect in which the urethra opens on the dorsum of the penis is:

• A)epispadias
• B)hypospadias
• C)hydrocele
• D)phimosis

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Definitions:

Acetyl Groups

Functional groups derived from acetic acid, consisting of a methyl group single-bonded to a carbonyl. The formula is CH3CO, often denoted as Ac in chemical structures.

Histone Tails

Histone tails are the N-terminal extensions of histone proteins that protrude from the nucleosome and play a key role in regulating gene expression by undergoing various chemical modifications.

Nucleosome

A basic unit of DNA packaging in eukaryotes, consisting of a segment of DNA wound around a core of histone proteins.

Transcriptionally Inactive

Refers to a state where certain genes or portions of the genome are not being transcribed into RNA, possibly due to regulatory mechanisms or chromatin structure.