The lac repressor protein binds to the operator when it is active. The lac repressor is a protein or a DNA-bounding protein as it is called. The lac repressor also involves the lactose metabolism and it is also responsible for the transcription of three lac genes.
Answer:
v = 10 cm³
Explanation:
Given data:
Mass of sample = 80 g
Density of sample = 8 g/cm³
Volume of sample = ?
Solution:
We will calculate the volume by rearranging the density formula,
Density:
Density is equal to the mass of substance divided by its volume.
Units:
SI unit of density is Kg/m3.
Other units are given below,
g/cm3, g/mL , kg/L
Formula:
d =m/v
d = density
m =mass
v = m/d
Now we will put the values in formula,
v = 80 g / 8 g/cm³
v = 10 cm³