During fetal development, the testis descends though the a. testicular vein
b. spermatic cord
c. inguinal canal
d. ejaculatory duct
e. seminiferous tubules

Ascientist introduced mutations in a gene sequence isolated from bacteria. study the sequence, and identify the steps where the mutations may affect the formation of proteins. in the sequence, black letters stand for protein coding regions and red letters stand for noncoding regions.