If two heterozygous tall pea plants are crossed, what would the expected genotypic ratio of the offspring be? (hint: use a punnett square)
a.
4 tt : 0 tt : 0 tt
c.
1 tt : 1 tt : 1 tt
b.
1 tt : 2 tt : 1 tt
d.
0 tt : 0 tt : 4 tt

option number one would be youre best option

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.