Similar results have been found in other studies [17] [18]. Based on these reports we have defined hard-to-heal ulcers in this study as venous leg ulcers with an initial area of 10cm2 or greater and a duration of six months or more.
A gene is a segment of DNA containing the code used to synthesize a protein. A chromosome contains hundreds to thousands of genes. Every human cell contains 23 pairs of chromosomes, for a total of 46 chromosomes. A trait is any gene-determined characteristic and is often determined by more than one gene. Some traits are caused by abnormal genes that are inherited or that are the result of a new mutation.
A regular human sex cell (unless something goes wrong) is haploid (meaning that it has half the chromosomes of a normal body cell). Since normal human body cells have a total of 46 chromosomes (23 pairs), a human sex cell (like sperm) has 23 chromosomes.As there are 23 chromosomes, the sex cells do not have pairs of chromosomes. The fact that sex cells only have half the number of chromosomes as regular cells (no pairs) is a very good thing. regular human sex cell (unless something goes wrong) is haploid (meaning that it has half the chromosomes of a normal body cell). Since normal human body cells have a total of 46 chromosomes (23 pairs), a human sex cell (like sperm) has 23 chromosomes.