Final answer:
In each species, the number of linkage groups equals the number of chromosome types.
Step-by-step explanation:
In each species, the number of linkage groups equals the number of chromosome types.
Each species has a characteristic number of chromosomes, and in humans, it is 23. Human cells have two sets of chromosomes in each cell, with 23 chromosomes in each set. These chromosomes come in pairs, known as homologous chromosomes, and they contain the same genes. So, the number of linkage groups, or pairs of chromosomes, is equal to the number of chromosome types in each species.
For example, in humans, we have 23 pairs of chromosomes, which means we have 23 chromosome types.