If they are both carriers , we can create a cross with Rr.
The probability of not even carrying PKU is 1/4 or 25%
The probability of carrying is 2/4 or 50%
And the probability of inheriting the disease PKU is 1/4 , 25%
Enzyme functioning is very much depends on it;s structure, and if it denatured due to deviation from normal physical conditions, then it won't function properly. Hence, your sentence is "True"
Hope this helps!
DNA replication is said to be semi-conservative because of this process of replication, where the resulting double helix is composed of both an old strand and a new strand. ... Semiconservative replication would produce two copies that each contained one of the original strands and one new strand.
It’s differing from ribose in having a hydrogen atom instead of an OH on one of the carbon atoms
