The sex of an infant is determined by the type of sex chromosome contributed by the male gamete. A male produces two types of sperms - one type bears 22 + X composition and the other, 22 + Y. Therefore, a male has 50 % sperms with X - chromosomes and other 50 % with Y – chromosome. As we know, any oRead more
The sex of an infant is determined by the type of sex chromosome contributed by the male gamete. A male produces two types of sperms – one type bears 22 + X composition and the other, 22 + Y. Therefore, a male has 50 % sperms with X – chromosomes and other 50 % with Y – chromosome.
As we know, any of the two types of sperms can fertilise the egg. Let assume, if a (Y – bearing sperm) fertilises the egg, the zygote will be XY (male child) and when an (X – bearing sperm) fertilises the egg, the resulting zygote will be XX (female child). Thus, the ratio of X – chromosome and Y – chromosome in male gamete is 50 : 50. The statistical probability of male or a female infant is also 50 : 50.
In human beings, the statistically probability of getting child either a male or female child is 50 : 50. Give suitable explanation for your answer.
The sex of an infant is determined by the type of sex chromosome contributed by the male gamete. A male produces two types of sperms - one type bears 22 + X composition and the other, 22 + Y. Therefore, a male has 50 % sperms with X - chromosomes and other 50 % with Y – chromosome. As we know, any oRead more
The sex of an infant is determined by the type of sex chromosome contributed by the male gamete. A male produces two types of sperms – one type bears 22 + X composition and the other, 22 + Y. Therefore, a male has 50 % sperms with X – chromosomes and other 50 % with Y – chromosome.
See lessAs we know, any of the two types of sperms can fertilise the egg. Let assume, if a (Y – bearing sperm) fertilises the egg, the zygote will be XY (male child) and when an (X – bearing sperm) fertilises the egg, the resulting zygote will be XX (female child). Thus, the ratio of X – chromosome and Y – chromosome in male gamete is 50 : 50. The statistical probability of male or a female infant is also 50 : 50.