The correct spelling of the two-word phrase "fertilized egg" is [ˈfɜrtəlaɪzd ɛɡ]. The first syllable is pronounced with the stress falling on the second syllable, which is represented by the symbol ˈ. The second syllable contains a diphthong, represented by the symbol ɛɪ. The final consonant in "fertilized" is pronounced as a voiced alveolar fricative, represented by the symbol z, and the final sound in "egg" is a voiced velar stop, represented by the symbol ɡ. Therefore, the correct pronunciation of "fertilized egg" can be written phonetically as "FUHR-tuh-lyzed egg."
A fertilized egg, scientifically termed as a zygote, is a biological concept that refers to an early embryonic stage resulting from the fusion of a sperm cell and an egg during sexual reproduction. The process occurs in multicellular organisms, including plants, animals, and humans. The fertilized egg marks the beginning of development and serves as a fundamental unit of life formation.
The fertilization process involves the fusion of genetic material, DNA, from both parents. When a sperm penetrates the egg's outer layer, it triggers a series of events that enable the genetic material to combine. As a result, the fertilized egg possesses a complete set of chromosomes, encompassing the genetic information needed for the development of an individual organism.
Following fertilization, the fertilized egg undergoes a process known as cleavage, where it rapidly divides into multiple cells through repeated mitosis. Subsequently, it travels through the fallopian tube, eventually implanting itself into the lining of the uterus to continue developing. In humans, implantation generally occurs around 6-12 days after fertilization.
The fertilized egg plays a crucial role in reproduction as it represents the starting point of a new life. Additionally, it marks the formation of unique genetic characteristics inherited from both parents, which will shape the physical and physiological attributes of the developing organism.
The fertilized ovum.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The etymology of the term "fertilized egg" can be broken down as follows:
1. Fertilized: The word "fertilized" is derived from the verb "fertilize", which originated from the Latin word "fertilis", meaning "fruitful" or "capable of bearing crops". It entered Middle English as "fertilize" in the 15th century, retaining its original meaning of making something fruitful or productive.
2. Egg: The term "egg" has a Germanic origin and can be traced back to Old Norse "egg" and Old English "æg", meaning "egg". Its exact Proto-Indo-European roots are uncertain, but it is related to words in several other Germanic languages with similar forms. The word has been in use for many centuries and has remained relatively stable in its meaning.