My parents are forcing me to go to grad school?

I have a degree in biology but the thing is that I don't even like biology and I made terrible grades in undergrad. I made C's and B's. I have one D. I graduated with a 3.0 gpa. Now my parents are forcing me to go to grad school for biology and they are paying for my tuition but I really don't want to go. If I don't go, my parents will basically disown me (they are immigrants of America).

I do want to go to grad school but not for biology. I am scared I will get terrible grades, judging by the grades I received in undergrad. I just don't have the natural propensity for biology. I have to take really hard classes like gross anatomy, physiology, neuroanatomy, etc.

So for a hypothetical situation... If I graduate with a master's in biology, can I apply to a different master's program in a different subject area? Also if I do apply, can I send them only my undergrad transcript and not my master's in Biology transcript?
My parents are forcing me to go to grad school?
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