I believe the answer is A nnn
The dry period is the time when cows are not producing milk. The mammary gland of the dairy cow requires a non lactating (dry) period prior to an impending parturition to optimize milk production in the subsequent lactation. The period includes the time between halting of milk removal and the subsequent calving.
Nonsense mutation is the correct answer.
glad i could help(:
1. A
2.C
3.B
Good luck bro n u got this
