Symptoms of iron-deficiency anemia are related to decreased oxygen delivery to the entire body and may include: 1  Being pale or having yellow sallow skin. 2  Unexplained fatigue or lack of energy. 3  Shortness of breath or chest pain, especially with activity. 4  Unexplained generalized weakness. 5  Rapid heartbeat.
Average heterozygosity refers to the average percentage of loci that are heterozygous in a population. Average heterozygosity is measured by looking at changes in karyotypes. The human genome consists of approximately 3 billion base pairs.
Best Answer: Heterozygous is when you have 2 different alleles for a certain characteristic: e.g. You could have a gene for brown eye colour on one chromosome and a gene for blue eyes on the other. In this case the dominant gene of the 2 would be expressed in the individual. Homozygous dominant is when the 2 alleles are the same and they are the dominant form of the gene. e.g. 2 brown eye genes BB Homozygous recessive is when the 2 alleles are the same and are the recessive form of the gene bb. Source(s): Chelsey Kimble Â· 7 years ago.