The so-called LH surge causes the release of the mature egg from the ovary-this is ovulation. Ovulation normally occurs 24 to 36 hours after the LH surge, which is why the LH surge is a good predictor for peak fertility. The egg can only be fertilised for up to 24 hours after ovulation.If it isnât fertilised the lining of the womb is shed (the egg is lost with it) and your period begins. This marks the start of the next menstrual cycle. While an egg only survives for up to 24 hours, sperm can remain active for up to five days.he so-called LH surge causes the release of the mature egg from the ovary-this is ovulation. Ovulation normally occurs 24 to 36 hours after the LH surge, which is why the LH surge is a good predictor for peak fertility. The egg can only be fertilised for up to 24 hours after ovulation.
DNA is the molecular code that codes for all proteins which make up life, a gene is a piece of dna that codes for one protein. A chromosome is a strand of DNA, this is where a number of genes are located, humans have 23 types of chromosomes and have two of each type.Erfie Â· 9 years ago.NA is the molecular code that codes for all proteins which make up life, a gene is a piece of dna that codes for one protein. A chromosome is a strand of DNA, this is where a number of genes are located, humans have 23 types of chromosomes and have two of each type. Erfie Â· 9 years ago.
A gene is a segment of DNA that codes for a polypeptide or for a molecule of RNA, such as a transfer RNA (tRNA) or ribosomal RNA (rRNA). The genes in the nucleus are in chromosomes. A chromosome consists of a molecule of DNA (two after replication of the DNA) and associated proteins. Genes are segments of DNA molecules.