E-ggs meet seed, fertilization occurs, babies are formed. Simple? Not really! Get introduced to the notion of feminine receptivity, or the freedom of choice for women. Narrowing it further, the female e-ggs actually do choose. As believed by Scott Gilbert, developmental biologist at Swarthmore College, the “e-gg engages in a dialog with the seed rather than locking it down.” So, fertilization is not actually a conquest, but more like a fair race. After much research, it has also been proven that tend to attract a particular kind of sees if given the chance. At Bright Side, we're thrilled to have come across the research that proved that eg-gs can be choosy and have their own pick as far as seed are concerned.
The popular notion - the race of the sp-erm
Any couple who is planning to extend their family is always under the belief that the races toward the e-gg. Let's start at the beginning. All seed ready, at its healthiest, and here begins the race! As we have been taught in school, millions of sp-erm head towards a single eg-g cell. When an X meets an X, it's a girl, and when an X meets a Y, it's a boy. So, let's now begin the process of unlearning.
Female eg-gs refuse to be submissive. They play a dominant role and choose their own sp-erm.
Race? Oh wait! It was never a race since the winner has already been decided. In simple language, the e-gg has already chosen the type of seed that it will allow to enter. As researched and explained by scientist Dr. Joseph H. Nadeau, eg-gs are not submissive and docile, but a key player in the process of reproduction. And against the popular notion that races toward the e-gg, it's actually the other way around.
As explained by Pacific Northwest Research Institute, it's the e-gg that favors or discards a seed, and makes s-xual selection at the cellular level itself more complex. It's strange but true that such an obvious process was assessed wrongly all this time.
How Mendel's law was defied?
Mendel's Law, by definition, is the law of segregation. It's also called the law of inheritance according to which each parent carries 2 copies of each gene. The next step is the 'random fertilization' process in which these genes are divided randomly into gametes that carry only one copy. However, recent studies discarded this belief altogether. Dr. Nadeau conducted 2 separate experiments that hinted towards a different theory. His intention was to produce specific predictable ratios of gene combinations in offspring (based on Mendel’s laws). However, he couldn't achieve it. As a part of his experiment, he first gave female mice one normal and one mutant gene that increased chances of getting testicular can cer. Male mice had all normal genes. The result was in accordance with Mendel's law.
Experiment 2: this time Dr. Nadeau reversed the breeding. He gave the male mice the mutant cance rous gene, while females had all normal genes. And there it was! He was astonished to see that only 27% received the mutant version, while they were expecting it to be 75%. What we all have been taught about normal and mutated versions of DND1 in the mother and the father went absolutely off calculation. What he made out of all this was terming fertilization as non-random and proving the existence of a mechanism that allows the eg-g to choose the seed with the normal instead of the mutated gene. In scientific terms, they call it 'genetically biased fertilization'.
What does this signify?
What does this signify? Was this always like this and skipped the sharp eye of top scientists?
Dr. Nadeau gave reasons for this newly found theory. He believed there could be two possibilities for this.
- Attraction between seed and e-gg largely involves the molecule of folic acid. Metabolism of B vitamin or folic acid is different in an e-gg and a sp-erm. These very changes may be the deciding factor for the attraction between seed and e-gg.
- Sp-erm are already present in the female reproductive tract when they are headed towards the e-gg. The e-gg may not be fully developed during this time. There's a possibility that the e-gg influences this cell-division so that its genes can also be well-suited to the seed.
This is how people reacted to this post:
Jenny Clark - When you think about it, they are both looking for a healthy baby, some miss the mark, and the others are an example of their upbringing
Megan Thai - My e-ggs chose nicely! My kids are super smart and good looking.
Henry Lee Sin Fook - Hmm… Now we all know how we eventually ended up with so many duds in our society… Because of its usual indecisions, by the time the final decision was made, all the robust & probably better quality near perfect sperms which had arrived earlier were being over & the e-gg had to accept whatever late comer that were leftover… however flawed it maybe
Rico Salas - They interviewed several e-gg cells and found out that they are not the easy-to-get type.
Teacha Fhambi Daba - Then mine is very stubborn only if it can specify which one is looking for
This Article Was First Published on brightside.me
