Hybrid organisms?

Question

Hybrid organisms (which are heterozygous) usually are not used as parents in controlled breeding. Based on mendelian genetics, suggest an explanation.

Answer 1

sounds like a homework question, but it's to keep a pure-bred line. Say you want a pure-white cat, which (let's pretend) is a recessive trait. You would only mate that cat with other pure white cats to keep a pure breed line to make sure that the litter would be pure white (the recessive trait) and carry on the trait for future generations.

Answer 2

The chromosome are usually not of the same number in the hybrid. Hybrids come from organisms that usually have different chromosome numbers. All right for somatic hybrid cell, but not viable reproduction usually.