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.
The difference between DNA and a chromosome has to deal with an intermediary-genes. DNA is deoxyribonucleic acid, which is a nucleic acid. It is made up of four bases-adenin â¦ e, cytosine, guanine and thymine.When these four bases are arranged in a segment, it is called a gene. gene is not a single structure or thing. It is made up of the micro-structures that determine a trait. These micro-structures are primarily chromosomes. Chromosomes are pieces of DNA.