Chromosome number is usually constant within a species but varies between species. Diploid numbers are even because chromosomes occur in homologous pairs. Examples include fruit fly 8, rice 24, human 46, chimpanzee 48 and dog 78.
The diploid number of chromosomes in humans (Homo sapiens) is 46 and the diploid number of chromosomes in rice (Oryza sativa) is 24. What does this indicate about diploid chromosome numbers?
Plant species have a lower diploid number of chromosomes than animals.
Members of a species have the same diploid number of chromosomes.
The evolutionary progress of species is determined by the diploid number of chromosomes.
The complexity of the organisms is correlated to the diploid number of chromosomes.
B