10 Interesting Fact About Biology and genetics

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• Humans have about 100 trillion cells in their bodies.
• Human DNA can stretch along about 2 meters if broken down and tailed.
• There are more than 20,000 genes in human genomes.
• Human chromosomes totaling 46, consisting of 23 pairs.
• Genes that make a person become skilled hands or left hand more skilled can be inherited.
• In humans, there are 4 blood types namely A, B, AB, and O.
• Viruses are cellular parasites, which can only reproduce by taking over the host cell.
• Black cats have genes that make their skin darker, so the feathers are darker.
• Animals such as horses and giraffes have more neck bones, which are about 7 cervical bones, thus allowing them to reach food from high plants.
• Human red blood cells only last for about 120 days before being replaced by new red blood cells.