TASK DEFINITION: In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.
PROBLEM: Question: What is the term for the exchange of genetic material between non-sister chromatids of homologous chromosomes? Answer: crossing-over

SOLUTION: Crossing-over is the term for the exchange of genetic material between non-sister chromatids of homologous chromosomes.

PROBLEM: Question: What does every star emit that humans cannot see? Answer: radiation

SOLUTION: Radiation does every star emit that humans cannot see.

PROBLEM: Question: What kind of bond consists of one sigma bond and one pi bond? Answer: double bond

SOLUTION:
A double bond consists of one sigma bond and one pi bond.