Question

Morgan coined the term _____ to describe the physical association of genes on a chromosome and the term ______ to describe the generation of non-parental gene combinations.

• A. recombination; linkage
• B. recombination; non-recombination
• C. linkage; non-recombination
• D. linkage; recombination

Answer 1

The correct option is D linkage; recombination

Linkage is physical association of genes on the chromosome and these genes are called linked genes. Linked genes have a tendency to get inherited together.
The linked genes can be separated during crossing over and this results in non parental gene combinations. The term used by Morgan to refer the non parental gene combinations is recombination.