In hemophilia A it’s caused by a mutation in the gene for factor VIII. Hemophilia B is a result in a deficiency in factor IX due to a mutation in its corresponding gene.
In both cases, it is a mutation in the DNA (the macromolecule).
Answer:
The human genome is a complete set of nucleic acid sequences for humans, encoded as DNA within the 23 chromosome pairs in cell nuclei and in a small DNA molecule found within individual mitochondria. These are usually treated separately as the nuclear genome and the mitochondrial genome.
The lithosphere is our crust, so it is made out of rock.
According to the medical community, females should visit a gynecologist (the doctor specialized to the female reproductive system) when they enter puberty, that is between the age of 13 and 15. However, some doctors suggest having the first reproductive system check-up when the female becomes sexually active. This check-up should be performed every year, in order to ensure that the female reproductive system is functioning properly.