A frog has 13 pairs of chromosomes, or 26 chromosomes in total. If the sex chromosomes are excluded, frogs have 24 chromosomes contained in 12 pairs.
The number of chromosomes per cell differs depending on the type of organism. For example, humans have 46 chromosomes in 23 pairs, while dogs have 78 chromosomes in 39 pairs. Plant cells also contain chromosomes. The potato plant has 48 chromosomes in 24 pairs, while the rice plant has 24 chromosomes in 12 pairs.
All organisms have a sex chromosome pair, which determines if the organism is male or female. Chromosomes consist of strands of DNA, which make up the genetic material of an organism.