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Â· just now. Report Abuse. D! The females have two copies of the X chromosome whereas the male have one X and one Y. Technically, all humans have 23 pairs but the last pair are the sex chromosomes and differ for gender. Someone To Help Â· 3 years ago. Thumbs up. 0.
The chromosomes of malignant cells usually do not lose their telomeres, helping to fuel the uncontrolled growth that makes cancer so devastating. Top of page. How many chromosomes do humans have? Humans have 23 pairs of chromosomes, for a total of 46 chromosomes. In fact, each species of plants and animals has a set number of chromosomes. A fruit fly, for example, has four pairs of chromosomes, while a rice plant has 12 and a dog, 39. Top of page.