Patient's question:
A woman is not very beautiful, but her skin is very white. After plastic surgery, she became very beautiful. Now she is looking for a handsome man and is preparing to get married. She wants her child to look like their father. When and under what conditions can she get pregnant? What preparations should be made before sexual intercourse?Doctor's answer:
Humans reproduce sexually, and the beginning of life is the fertilized egg. The fertilized egg is composed of sperm and egg cells, each carrying half of the genes from the father and the mother. Regardless of the child's gender, they inherit half of the genes from each parent. However, during the combination, the traits that become prominent differ because of the presence of dominant and recessive genes.Dominant + Dominant = Dominant
Dominant + Recessive = Dominant (the recessive gene does not appear but is carried and can be passed down through reproduction)
Recessive + Recessive = Recessive
For example, double eyelids are a dominant trait. If both parents have double eyelids, the child may have double eyelids or single eyelids. This is because if both parents are dominant genes, they will both have double eyelids. If one parent carries the single eyelid gene, the trait will still appear as double eyelids, so the child will still have double eyelids. However, if both parents carry one single eyelid gene each, the child may have a mix of single and double eyelids. If one parent has double eyelids and the other has single eyelids, the child will still have both. If both parents have single eyelids, the child will also have single eyelids.