True or false? Single-stranded DNA molecules are said to be antiparallel when they are lined up next to each other but oriented in opposite directions.

True

Explanation:

Two single stranded DNA are said to be antipararell when one runs in the 5' to 3' direction, while the second strand runs in the 3' to 5' direction. They are both line up in opposite direction.

The antipararell of DNA is similar to a road divided into two, each half carrying traffic in opposite direction.

The answer is True

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.