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.
Homozygous â having identical alleles for a single trait. Heterozygous â having two different alleles for a single trait. genotype â genetic structure of a cell or organism. Phenotype â physical or biochemical characteristics of an organism.eply. Homozygous-when the 2 alleles are the same. Heterozygous-when the 2 alleles are different. Phenotype-what the alleles physically look like. Genotype-the alleles as letters eg bb Bb BB etc. Reply. Homozygous â genes that are the same.