Answer:
D. 3:1
Explanation:
Gregor Mendel, in one of his numerous studies, performed a cross between purebred dominant (TT) pea plants and purebred recessive (tt) pea plants. All the offsprings of this cross appeared heterozygous tall (Tt) in the F1 generation.
However, when he self-crossed the F1 generation i.e. Tt × Tt, Mendel obtained a phenotypic ratio of 3 tall plants (dominant traits) : 1 short plant (recessive). This showed that the masked gene (recessive) was still present.
They ensure they leave the system and they also ensure that people get the nutrients they need.
Conduction is when an object allows electricity to pass through it. Think of something like a wire, coper, and steel. Good luck dude!
They need to have the exact copy of the cell, so it does takes time.
