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Genetically, the contributions of the two parents are almost identical.

Both the sperm and the ovum contribute the same amount of genetic information on nuclear chromosomes. They each contribute a haploid number of chromosomes (i.e. one set of 23 chromosomes).

However, a few genes (37) are carried on the mitochondrial DNA (mtDNA), of which there are hundreds of copies in a typical cell. All the baby's mtDNA comes from Mum; Dad supplies only nuclear DNA. So the mother contributes a few more genes to the child than the father does.

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15y ago
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15y ago

The sperm cell decides the sex of the baby.

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Q: Which cell decides the sex of the baby the sperm cell or the egg cell?
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Related questions

Why Are Egg Cells Speacialised?

they are sort of the same as a sperm cell but the egg cell forms into a baby


When a sperm and egg join they create a?

A single cell


Can one cell become a baby?

no. it should be 2 cells. the egg cell and the sperm cell


What cell forms when an egg and sperm join?

well cell forms zygote when an egg and sperm joins and with the passage of time it got a mature baby


What is the function of the human egg cell?

to get fertilized by sperm and turn into a baby


When a egg and sperm combine what is it called?

The combining of an egg and sperm to create 1 single cell is "conception."


How does a sperm and an egg make a baby?

One sperm burrows into the egg and starts the process of cell division that becomes a baby. That is what it does, I'm not sure anyone can really tell you how it happens.


What will the fertilized egg undergo so that it forms a baby?

cell division, after it caused the egg and sperm to fertilized


Which cell determends the gender of a human baby?

The sperm cell determines the gender of a human baby. Ova only have X sex chromosomes, but sperm cells can have either an X or a Y sex chromosome. If an X sperm fertilizes an egg, the offspring will be XX and be female. If a Y sperm fertilizes an egg, the offspring will be XY and be male.


What occurs when sperm cell unites with a egg cell?

When sperm reach an egg, there is a competition to get into the egg first. Since sperm travel in groups, theres a lot of competition. Once a sperm has penetrated the membrane, the membrane hardens, blocking the rest of the sperm out. Once inside, the sperm releases its genetic material, and the egg cell divides, and will continue so until a new baby is born.


What does ferterlized mean when you make a baby?

An egg is fertilized when the sperm call has combined with the egg to form a zygote,a single cell combining the characteristics of both the sperm and the egg.


Special function of the sperm cell?

The function of the sperm cell is to fertilize an egg cell.