Public SPEAKING PRESENTATION TOPIC:TWINS : Public SPEAKING PRESENTATION TOPIC: TWINS TWINS: TWINS PRESENTED BY PRIYADHARSHIni NATARAJAN iii biotechnology (111011101088) CONTENT: CONTENT TWINS TYPES OF TWINS ADVANTAGES DISADVANTAGES Monozygotic("identical")twins : Monozygotic("identical")twins CONT…: CONT… They are similar in nature Very difficult to identify Monozygotic twinning occurs in birthing at a rate of about three in every 1000 deliveries worldwide. Some examples…: Some examples… DIZYGOTIC(NON-IDENTICAL TWINS): DIZYGOTIC(NON-IDENTICAL TWINS) FRATERNAL(non identical twins): FRATERNAL(non identical twins) Two fertilized eggs are implanted in the uterus wall at the same time. Two eggs are independently fertilized by two different sperm cells, it result fraternal twins . The two eggs, or ova , form two zygotes , hence the terms dizygotic and biovular . CONT…: CONT… They are same only with their age but are entirely differ from each other They may be of different sexes or the same sex With the advent of technologies and techniques to assist women in getting pregnant, the rate of fraternal has increased markedly. Some examples…: Some examples… CONJOINT TWINS: CONJOINT TWINS SOME EXAMPLES…: SOME EXAMPLES… ADVANTAGE: ADVANTAGE Identical twins do not have the same fingerprints Mother only have to go through a single pregnancy, but she end up with two children. Twins go through the same developmental stages which makes it a lot easier for the parents. DISADVANTAGEs: DISADVANTAGEs constantly being compared to each other never having privacy With twins, one tends to be more dominant than the other, which really sucks Leads to over population. PowerPoint Presentation: THANKYOU THANK YOU…!