A) Baldness
B) Red-green colour blindness
C) Facial hair/moustaches in males
D) Night blindness
Correct Answer: B
Solution :
Red-green colour blindness or colour blindness is a genetic disorder in which eyes fail to distinguish red and gren colours. It is a recessive sex linked trait. The normal gene and its recessive allele are carried by X-chromosomes. In human males the defect appears in the presence of single recessive gene \[({{X}^{c}}Y)\] while in females it appears when both the sex chromosomal carry the recessive gene \[({{X}^{c}}{{X}^{c}})\]. Such person cannot serve in railway department. Other options of the question are hormonal or vitamin deficiency disorders.
You need to login to perform this action.
You will be redirected in
3 sec
