oosperm
Definition
Noun (Biology): An "oosperm" is a fertilized egg cell; the zygote that results from the union of a male gamete (sperm) and a female gamete (ovum) during sexual reproduction.
Usage Examples
- (The fertilized egg undergoes cell division.)
- (The zygote carries combined DNA.)
- (The fertilized egg grows through various phases.)
Advanced Usage
"Oosperm formation": the process of fertilization leading to the creation of the zygote.
- Oosperm formation occurs when the sperm penetrates the egg's protective layers. (Fertilization creates the zygote.)
"Oosperm nucleus": the nucleus of the fertilized egg, containing the combined chromosomes.
- The oosperm nucleus undergoes mitosis to initiate embryonic development. (The zygote's nucleus divides.)
Variants and Related Words
Oospore (n): a thick-walled spore formed by the union of gametes in certain algae and fungi; similar to an oosperm but in non-animal organisms.
- The oospore of a water mold can survive harsh conditions. (A fertilized spore in fungi.)
Oogenesis (n): the process of female gamete (ovum) formation, which produces the egg that may become an oosperm after fertilization.
- Oogenesis occurs in the ovaries of female animals. (Egg cell production.)
Synonyms
- Zygote: the diploid cell resulting from the fusion of two haploid gametes; a direct synonym for oosperm.
- Fertilized ovum: a more descriptive term for an oosperm.
Related Idioms
- (No common idioms exist for "oosperm," as it is a highly technical biological term.)