It is the father's contribution that determines the sex of the offspring. Of the XX and XY pairs that determine sex, the mother always contributes an X. If the father contributes an X as well, the offspring is female. If the father contributes a Y, the offspring is male.
Two XX chromosomes will result in a female infant. An X and Y will produce a male infant.
Xy=male xx=female
Xy, xyy, xxy
Meiosis, the division of sex cells, produces cells with half the number of chromosomes found in body cells. This is for a very simple reason - when a male sex cell and a female sex cell combine, they form one cell with the full number of chromosomes.
Two X sex chromosomes are in a female liver cell.
The normal monoploid (n) # of a female sex cell is 23 chromosomes
1 pair of sex chromosomes Female pair is XX Male pair is XY
Female cells contain the sex chromosomes XX. A female gamete (ovum/egg) contains one X chromosome.
Meiosis, the division of sex cells, produces cells with half the number of chromosomes found in body cells. This is for a very simple reason - when a male sex cell and a female sex cell combine, they form one cell with the full number of chromosomes.
Two X sex chromosomes are in a female liver cell.
The female organ that produces sex cells is called the ovary, and produces ova.
There are only two variations of the sex chromosomes X and Y. A typical female has XX, while a typical male has XY. There are a few conditions where other combinations are present such as XO (a single X), XXX, XYY etc, but they are all combinations of X's and Y's.
The normal monoploid (n) # of a female sex cell is 23 chromosomes
1 pair of sex chromosomes Female pair is XX Male pair is XY
XX
XX
Female cells contain the sex chromosomes XX. A female gamete (ovum/egg) contains one X chromosome.
Xy chromosomes= boy xx chromosomes= female
Female humans, and most other female mammals have two X sex chromosomes.
A female human has two X sex chromosomes in her cells. A male human has one X and one Y sex chromosome in his cells.