All of the following are involved in male sexual differentiation during early development except
a) mullerian inhibiting hormone
b) testosterone
c) dihydrotestosterone
d) sex-determining region of the y (sry)
e) progesterone

The correct answer is E.

Explanation:

During fetal development, Müllerian inhibiting hormone produced by Sertoli cells of the testes of a XY fetus prevents Müllerian duct to keep developing into fallopian tubes and uterus.  

Testosterone stimulates Wolffian duct to evolve into spermatic ducts, ejaculatory ducts and seminal vesicles.

Dihydrotestosterone production is stimulated by the testes and has a key role during internal and external genitalia maturation.  

SRY gene produces a protein that binds to DNA and directs the development of the gonad into testes.

Ammunitions are given specific markings and colour codes.

Explanation:

Ammunitions markings and colour codes are vital to enable ammunitions specialist to identify and classify ammunitions for the purpose of record-keeping that will promotes accountability for its use, storage, safe transportation, and quality control, and it can also be used to monitor the transfers of ammunitions between users.