Humans have 44 autosomes, which is a total of 22 pairs of autosomes. Autosomes are the chromosomes that determine what proteins are made in the body that are not related to sex. In all, humans have 23 pairs of chromosomes, one pair of which are the sex chromosomes, the X and Y chromosomes.Know More
Not all the autosomes are the same size. The largest autosome is Chromosome 1, which has about 2,800 genes. The second largest autosome is Chromosome 2, which contains about 750 genes.
Usually, one of each set of chromosomes is inherited from each parent. In a condition called trisomy, two chromosomes are inherited from one parent and one is inherited from the other. Trisomy 21, also known as Down Syndrome, results when an individual has three copies of the autosome Chromosome 21.Learn more about Molecular Biology & DNA
Haplogroup K is a genetic lineage in humans that is traced via mutations in the DNA that originated thousands of years ago in western Asia. The mutations used to trace haplogroup K are inherited only through the parent that gave birth, allowing geneticists to trace maternal ancestry in populations.Full Answer >
Cloning a human could be beneficial if the cloning produces useful stem cells for the treatment of disease in humans, but cloning could be ethically inappropriate and open up new challenges both ethically and legally, according to How Stuff Works.Full Answer >
In humans and other animals, traits are passed on from parents to their offspring through DNA. When an egg is fertilized with sperm, the resulting offspring takes 50 percent of its DNA from each parent, and its traits are determined by which parts of its parents' DNA are passed on.Full Answer >
DNA, or deoxyribonucleic acid, is genetic material that exists in nearly all living organisms, including humans. Any organism with nucleus-based cells has DNA. It is the building blocks forming an organism, and the DNA combination an organism is born with remains the same.Full Answer >