Until Berta and Ernst Scharrer established the concept of neurosecretion in 1928, scientists believed that either cells

[BTGmoderatorDC]

Until Berta and Ernst Scharrer established the concept of neurosecretion in 1928, scientists believed that either cells secreted hormones, which made them endocrine cells and thus part of the endocrine system, or conducted electrical impulses, in which case they were nerve cells and thus part of the nervous system.

a) either cells secreted hormones, which made them

b) either cells secreted hormones, making them

c) either cells secreted hormones and were

d) cells either secreted hormones, in which case they were

e) cells either secreted hormones, which made them


OA D

Source: GMAT Prep

[Neha sharma]

a) either cells secreted hormones, which made them - Parallelism issue - Either X or Y -- no subject for conducted

b) either cells secreted hormones, making them - same as A

c) either cells secreted hormones and were - same as A

d) cells either secreted hormones, in which case they were - Parallelism

e) cells either secreted hormones, which made them - illogical - The hormones did not make the cells endocrine cells. The fact that the cells produced these hormones shows that the cells are endocrine cells ; parallelism is better in D