0
50 % of human sperm Cells are an X chromosome, the other half are a Y chromosome: {diploid = 2n = 1 chromosome pair; haploid = n = 1 chromosome - including the meiotic single chromosome = n}. All sperm and egg Cells carry one set each of n (23 single) chromosomes.
When a sperm and an egg combine either: a) a sperm Cell with the X chromosome merges with the [X-chromosome] egg Cell and the baby will be a girl; or b) a sperm Cell with the Y chromosome merges with the egg Cell and the baby will be a boy.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoThey are produced in exactly equal amounts, so, 50%. There is some evidence that sperm with XX may be more fit ("stronger"), which would suggest more XX reach the egg. However, there is some evidence that those with XY are "lighter", which would suggest XY would have an easier time getting to the egg.
Add your answer:
Earn +20 pts
Why is a human cell containing 22 autosomes and a y chromosome a sperm?
Human somatic (body) cells contain two sets of 23 chromosomes. Human gametes (sperm and egg cells) contain one set of 23 chromomes -- 22 autosomes and 1 sex chromosome. Only a sperm cell can carry a y chromosome. A sperm cell can also carry an x chromosome. The ovum can carry only an x chromosome, never a y chromosome. So a cell containing 22 autosomes and a y chromosome must be a sperm cell.
How many pair of chromosomes do normal human cells contain?
Gametic [haploid] Cells are chromosome number n - which involves 23 individual chromosomes. Somatic [or diploid] Cells are chromosome number 2n - which involves 23 pairs of chromosomes. Mitotic Cells are 4n.
Which sex chromosome do sperm cells carry?
Sperm cells are of two types. One type carries a Y chromosome, while the other type carries an X chromosome. This is the reason why the Spermatid is the 'deciding factor' in whether a baby will be male or female. The Ovum always carries an X chromosome.
How many sets of chromosomes does a human cell have?
46 A human fetus starts out as two reproductive cells with 23 chromosomes each, making a fertile 46 chromosome cell that grows into a fetus. So, we are basically just a bunch of developed 46-chromosome-enriched cells.
What portion of the human Y chromosome is homologous to the human X chromosome?
biology!
What percentage of human sper cells carry an X chromosome?
50% that's why there is an equal chance of having a girl or boy child
Why is a human cell containing 22 autosomes and a y chromosome a sperm?
Human somatic (body) cells contain two sets of 23 chromosomes. Human gametes (sperm and egg cells) contain one set of 23 chromomes -- 22 autosomes and 1 sex chromosome. Only a sperm cell can carry a y chromosome. A sperm cell can also carry an x chromosome. The ovum can carry only an x chromosome, never a y chromosome. So a cell containing 22 autosomes and a y chromosome must be a sperm cell.
How do cells become a full human body?
the chromosome and the
What is the probablilty that a human sperm cell will carry an X chromosome?
The male gamete is comprised, on average, of 50% of the X chromosome and 50% of the Y chromosome.
How many chromosome do normal human body cells have?
5
How many sex cells chromosome does human have?
23 chromosomes
How many chromosome's do human body cells contain?
21
What sex chromosome does a human egg cell contain?
The sex chromosome typically carried by an ovum is X-chromosome. The sperm may carry either x or y sex chromosome.
What is the probabitily that a human sperm cell will carry an x chromosome?
50%
Do human cells have 46 genes?
No. The human cell has 23 chromosome pairs (total 46 chromosomes). Each chromosome has many genes.
What percentage of human offspring receive a Y chromosome from their father?
52
How is the haploid chromosome number?
The haploid chromosome number is half the chromosome number of the body cells. For example, in humans, body cells have 46 chromosomes. In human haploid cells (sex cells), there are 23 chromosomes.
