Question

How chromosomes determine the sex of a baby?

Answer 1

Hint: The biological system that controls the development of sexual traits in an organism is known as sex determination. Male and female sexes are the two sorts of sexes. The chromosome is crucial in establishing an individual's gender. In comparison to asexual reproduction, sexual reproduction is far more difficult. Sexual reproduction is a time-consuming and difficult procedure. The process starts with the creation of gametes in both the male and female bodies. These male and female gametes meet and combine to form a unicellular zygote through sexual intercourse.

Complete explanation:
To comprehend how sex is determined, we must first comprehend the following procedure.
Humans have \[23\] chromosomal pairs. Out of these \[23\] pairs, \[22\] are Autosomes and only one is the 'Sex Chromosome,' which is involved in the sex determination process.
Both males and females have two sex chromosomal sets.
Males have one X (XY) and one Y (YY) chromosome, both of which are active.
Females have two X (XX) chromosomes, one of which is active.
Humans, animals, insects, and a few plant species all have the XY sex-determination mechanism.
Regardless of whether they are a boy or a girl, all children get an X chromosome from their mother. As a result, the type of chromosome inherited from their father will decide the sex of the offspring.
A boy will inherit the Y chromosome, whereas a girl will receive the X chromosome.
A male sperm cell contains roughly \[50\% \] Y sperm cells and \[50\% \] X sperm cells in his sperm. As a result, it's possible for men to have three or more children of the same gender.

Note:
Chromosomes are a thread-like structure that stores genetic data. It can be found in the nucleus of cells. A typical cell has \[23\] pairs of chromosomes \[\left( {46n} \right)\]. Sex chromosomes make up one pair \[\left( {2n} \right)\] of these. The X and Y chromosomes are the male and female chromosomes, respectively. XY chromosomes are found in male cells, while XX chromosomes are found in female cells.
There are just \[23\] chromosomes in a gamete \[\left( {23n} \right)\]. An X or Y chromosome is found in each sperm, therefore there will be two sets of sperms. Only X chromosomes are found in one set of sperm, while only Y chromosomes are found in the other. The X chromosome is always present in an ovum. The type of sperm that unites with the ovum determines the child's sex.