Genotype ratio refers to the probability of each type of thing (in this case, round/yellow seeds) occurring based on the Punnett square. If you were to write out how many of each specific hybrid occurred in the square, you'd get:
1 RRYY
2 RRYy
2 RrYY
4 RrYy
1 RRyy
1 rrYY
1 rryy
What does this tell us? In this case, the only thing that matters is the capital letter (since that's the dominant trait and will determine whether the seed is/isn't round/yellow).
Looking at each one, you see some of them are the same - for example, RRYY and RRYy both end up as round and yellow. RrYy is too, as is RrYY.
So, you end up with 9 round and yellow; 3 round and not yellow; 3 not round and yellow; 1 not round and not yellow.
Enzymes are proteins
protein synthesis ocurs in the ribosomes
It should be around July 8th
1.) Mitosis is the splitting of a parent cell into two daughter cells. When mitosis occurs the DNA is copied, making double the amount of chromosomes in the parents cell which will late be divided into two separate cells when the cell pinches in the middle.