16419217
Beschreibung
Karteikarten von Rebecca Sikarev, aktualisiert more than 1 year ago
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Erstellt von Rebecca Sikarev
vor fast 6 Jahre
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| Frage | Antworten |
| What is sexual reproduction? | The production of offspring by the fusion of haploid gametes (eggs and sperm) from two parents to form a diploid gamete (fertilized egg). |
| What are gametes? | eggs and sperm/sex cells/germ cells |
| What is fertilization? | when sperm unites with an egg to form a zygote and an embryo develops |
| What is a zygote? | fertilized egg |
| What are germ cells? | gametes/sex cells/eggs and sperm |
| What are somatic cells? | all body cells except sex cells |
| What is spermatogenesis? | is the formation of sperm in the male testes |
| What is oogenesis? | the formation if eggs in the female ovaries |
| What is an embryo? | the early stage of development of a multicellular, eukaryotic organism |
| What is blastocyst? | After 5-6 days,consists of 200 cells. Implants in uterus to begin embryo development. |
| What is morula? | Zygote after 4-5 days of development, made of a mass of 10-30 cells |
| What is meiosis? | a specialized form of cell division that produces gametes (reproductive cells), such as egg and sperm for sexual reproduction |
| When is the sex of a baby determined? | At conception |
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