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Which parent determines the sex of a child?
The father provides an X or Y chromosome; the mother always provides an X chromosome. Therefore, the sex of the child is determined by the chromosome of the individual sperm that fertilizes the egg.Male offspring carry XY chromosomes; female offspring carry XX chromosomes.Information from another contributorthe father deposits the semen containing sperms in the vagina of mother. ideally the X and the Y sperms are in same number (this is rarely the case).the germ cell in father's testicle initially divides into 2 cells. one of which is Y sperm responsible for male child. second one is X sperm responsible for female child. These cells then each divide in 2 these 2 cells further divide in 2 each producing 4 of one kind. this process goes on and on to produce 50 millions to 150 millions sperms in the semen. Half of them are Y sperms and Other half are X sperms.If the X sperm unite with female egg then a female child is born.If Y sperm unite with female egg then a male child is produced.As same number of Y and X sperms are deposited in the vagina; which type of sperm ultimately will unite with female egg depends on the conditions of female reproductive system. Whether the condition is favorable for the rapid and safe movement of X sperms or the Y sperms.The Y sperms are very delicate and are easily get destroyed by acidic and toxic environment of vagina. Thus if the vagina is very acidic most of the Y sperms are destroyed the rest may get immobile and not fit to swim in the cervical canal.The X sperms are stronger and can withstand the acidity and toxicity better.Thus if the medium of the reproductive organ mainly vagina, cervix, uterus and fallopian tubes is not favorable then the Y sperms get destroyed or immobile and the surviving X sperms swim in to unite with X egg of the woman to produce female child. This is why failure of family planning method like condom, spermicides, jelly, or withdrawal mostly results in female child. Similarly women having vaginitis, cervicitis, leucorhea, candida infection, cervical erosion almost always produce female children.
Is x- a number and a number-x the same?
no
Four less than a number is the same as twice the same number?
Let the unknown number be x: x-4 = 2x -4 = 2x-x -4 = x So the number is -4
What is in semen that the baby receives?
Semen contains the X chromesome of the male partner and is inherited by the would be baby.
Four times a certain number is the same as the number increased by 78?
x = number Four times the number (4x) is the same as the number increased by 78 (x + 78). Since they are both equal, then 4x = x + 78 4x - x = 78 3x = 78 x = 26
What is a number divided by a minus number?
X divided by -Y is the same as -X divided by Y. Or - (X/Y)
How do you convert mi to feet oz to pounds qt to pint?
( 5,280 ) x (number of miles) = same distance in feet ( 0.0625 ) x (number of ounces) = same weight in pounds ( 2 ) x (number of quarts) = same volume in pints
The ratio of a number to 100?
it depends on the number, but if that number was represented by x, then it would be x:100 or x/100. a ratio is the same as division.
The sum of a number and five times the same number is 24?
Let the number be x: 5x+x = 24 6x = 24 x = 4
Why is the square of a negative number not a real number?
I thought it was real... square of -x is the same as the square of +x
What is the number that you are dividing into?
If it says x (division symbol) y, then it's the first number. Same with x/y. Divide into x.
The sum of twice a number and 18 less than the number is the same as the difference between -34 and the number?
52
