PNB 2275 - EXAM 4 (REPRODUCTIVE SYSTEM) 2026 QUESTIONS AND ANSWERS | A+ GRADED | WITH EXPERT SOLUTIONS

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PNB 2275 - EXAM 4 (REPRODUCTIVE
SYSTEM) 2026 QUESTIONS AND
ANSWERS | A+ GRADED | WITH
EXPERT SOLUTIONS

karyotype for man - ANSWER-(46, XY)




Turner's syndrome - ANSWER-(45, X): internally and externally
female, non-functioning ovaries




Klinefelter Syndrome - ANSWER-(47, XXY): internally and
externally male, infertile




SRY gene - ANSWER-transcription factor, develop gonad to
testis




part of undifferentiated gonad for testes and ovaries -
ANSWER-medulla; cortex

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leydig cells in males secrete - ANSWER-testosterone




testosterone role in male internal genitalia development -
ANSWER-wolffian ducts to epididymus, vas deferens, and
seminal vesicles




DHT role in external development - ANSWER-present = male,
not present = female




sertoli cells in males secrete ______ for development of genitia
- ANSWER-MIS; suppress mullerian duct




no MIS leads to... - ANSWER-females; mullerian duct
development into fallopian tubes, uterus, and upper vagina




spermatogenesis in embryo - ANSWER-mitosis only




spermatogenesis at puberty - ANSWER-mitosis and meiosis