Question

How was it established that genes are located on the chromosomes?

Answer 1

genes are segments of DNA that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes.
-dna are present on the chromosomes and as the dna contains genes hence we can say that genes are located on the specific site that is locus of chromosomes

Answer 2

Answer:

In all the organisms, the number of chromosomes is fewer than the number of characteristic features, which are many. If 'genes' are responsible for a characteristic feature, they have to be certainly many more than the number of chromosomes.

Explanation:

For example, in human beings, the total number of chromosomes is 23 pairs, but the total number of characters (genes) has been estimated to be between 30,000 to 40,000. This suggests that genes are located on the chromosomes