Question

A specific mutation in a certain animal leads to abnormal development of the heart and kidney, resulting in miscarriage. Why did this happen?

Answer 1

a change in sequence of bases leads to production of different amino acid because different sequence of bases code for different amino acid thus if one base is changed we will get a different amino acid
having different amino acid that we are NOT supposed to have - obviously changes some functions of the upcoming products (proteins) leading to abnormality in functioning or stop functioning
that's why miscarriage happened

Answer 2

heart's function is to pump blood around the body right? so if there is any abnormality that means the body will not get sufficient amount of nutrients and gases through blood
kidney's function is basically filter the blood that is transported to get rid of unwanted stuff in your body, if it was to malfunction it can lead to loosing useful nutrients from body or not getting rid of unwanted stuff
thus both of these together can actually lead to death
as you see here the function of both heart and kidney is changed or stopped or slowed down
this thing can happen even because of 1 change in base sequence meaning a different amino acid

Answer 3

@Abhisar am i missing out anything?

Answer 4

Nopes..u r crrct @Somy

Answer 5

oh good i thought its not enough info @Abhisar