The train traveled 100km (50x2) down and then 375km (75x5) up. So the train is 275km (375-100) up from where it started.
The genotypes that indicates a homozygous dominant trait is : B. TT
Homozygous : both alleles must be the same, so it eliminate option A.
Dominant trait : One of the allele must be written in Capital letter, so it eliminate option C.
this leaves option B, as the answer
hope this helps
The answer is b mass because that's how you will measure it
The nucleus is a membrane enclosed organelle found in most eukaryotic cells,which stores the genetic material .
I think it would be the first ones with lower o2 because fish dont breathe oxygene