Question

Give the chromosome theory of inheritance statements.

Answer 1

Chromosome theory:

1. Boveri and Sutton, in the early$1900\mathrm{s}$, proposed the chromosomal hypothesis of heredity.
2. Genes are the basic units of inheritance, according to this view.
3. They are located in chromosomes.
4. The following are some potential statements from the chromosomal theory of inheritance:

• Between homologous chromosomes, allelic gene exchange takes place.
• The percentage of crossing between genes is inversely proportional to their distance.
• In the chromosome, each gene has a specific location.
• Genes are organized in chromosomes in a linear pattern.
• The haploid chromosomal set has the same number of linkage groups.
• On chromosomes, genes are found.
• A gene linkage group is a chromosome.