Determination Of Sex | Determination Of Twins and Multiple Births - GMS - Learning Simply
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Determination Of Sex | Determination Of Twins and Multiple Births

There are two different types of sexes, that participate in sexual reproduction. So it is natural to find it confounding as from which sex the baby in
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Determination Of Sex

There are two different types of sexes, that participate in sexual reproduction. So it is natural to find it confounding as from which sex the baby inherits, that results in the sex of the child. There are several other procedures followed to determine the sex of a newborn baby. Based on the environmental signals the sex of a baby can be determined. In a few animal species, temperature plays a major role in sex determination. In other animals, like snails, it is possible to change sex as they are not genetically processed. In human beings, the sex of an individual is genetically determined. In other words, the genes which are inherited from their parents decide the sex of the child.

Determining the Sex

To understand how the determination of sex happens, we need to know the following process.

  1. Humans have 23 pairs of chromosomes. Out of these 23 pairs, 22 pairs are Autosomes and only one pair is the ‘Sex Chromosome’, which actively takes part in the process of sex determination.
  2. Both males and females carry two sets of sex chromosome.
  3. Male has one X and one Y (XY) sex chromosome in which both are active
  4. Female has both X (XX) sex chromosome in which one is active.
  5. The XY sex-determination system is found in humans, mammals, in some insects, and in few plant species.
  6. All children will inherit an X chromosome from their mother, despite whether they are a boy or girl. Thus, the sex of the children will be determined by the type of chromosome inherited from their father.
  7. A child who inherits Y chromosome will be a boy and who inherits X chromosome will be a girl.

    Determination Of Sex | Determination Of Twins and Multiple Births

  8. A male semen’s holds approximately 50 percent of Y sperm cells and other 50 percent of X sperm cells. Therefore, there are possibilities that men have three or more children of a single-gender.

About the Author

At the helm of GMS Learning is Principal Balkishan Agrawal, a dedicated and experienced educationist. Under his able guidance, our school has flourished academically and has achieved remarkable milestones in various fields. Principal Agrawal’s visio…
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