The blastodisc is used to keep the girl part of the yolk still while the male part disconnects to mate with the female
It's called the germinal disc or blastodisc - a small, circular, white spot (2-3 mm across) on the surface of the yolk; it is where the sperm enters the egg. The nucleus of the egg is in the blastodisc.
The thin layer in an egg is called the eggshell membrane. It lies just beneath the eggshell and helps protect the egg from contamination.
A blastoderm is a germination point in an ovum from which the embryo develops.
With my chickens we arnt always sure - but if the hen and cockeral have done their buisness ok and the hen is broody we always assume all the eggs she has layed recently could be - but it takes awhile for the embreo in the egg to develop so i would assume its ok to eat them if their freshly layed. hope this helps x
Embryo is formed in germinal spot of yolk .
The white dot on the yolk is the blastodisc, or where the chick embryo would form if it were fertilized. If you're talking about the strands that look like tails on the yolk, those are the chalazae that keep the yolk in place in side the egg.
The yolk is the yellow part in the middle. The whites are the white, squishy part around the yolk. They are totally white in a hard-boiled egg. The shell is the thin, hard casing around the egg. Seriously, you should know this from kindergarten.
Wharton B. Mather has written: 'A third race of Drosophila rubida' -- subject(s): Diptera, Drosophila 'The technique of rabbit blastoderm culture' -- subject(s): Rabbits, Blastoderm
The germinal disk, also known as the blastodisc, is a small, circular area located on the surface of an egg where fertilization occurs and embryonic development begins. It contains the genetic material from the female, and when fertilized by sperm, it initiates the development of the embryo. In birds and reptiles, the germinal disk is crucial for the growth of the embryo within the egg, providing the foundation for cellular division and differentiation.
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The germinal disc, also known as the blastodisc, is a small, circular area found on the surface of an egg, particularly in bird and reptile eggs. Its primary function is to facilitate the development of the embryo; it contains the cells that will eventually divide and differentiate into the various tissues of the organism. The germinal disc is crucial for fertilization, as it is the site where the sperm enters the egg, leading to the formation of the zygote and subsequent embryonic development.
The germ cell is located on top of the yolk and looks like a small white disk. This is barely visible to the naked eye. The egg, or germ cell, when fertilized would turn into an embryo and eventually a chick.