Geneticists use probability to determine the likely numbers of specific types of offspring from two parents. true or false.

How can you approximate the number of calories required to keep you in energy balance?

What enzyme is most important for dna replication and why?

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?