Answer:
15
Step-by-step explanation:
We are given that
Number of alpha protein subunits=4
Number of beta protein subunits=2
Total number of protein sub-units=2+4=6
We have to find the number of different arrangements are there.
When r identical letters and y identical letters and total object are n then arrangements are
[tex]\frac{n!}{r!x!}[/tex]
n=6,r=2,x=4
By using the formula
Then, we get
Number of different arrangements =[tex]\frac{6!}{2!4!}[/tex]
Number of different arrangements=[tex]\frac{6\times 5\times 4!}{2\times 1\times 4!}[/tex]
Number of different arrangements=15
Hence, different arrangements are there= 15
