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Look up the SRY gene located on the sex chromosomes. The SRY gene when turned on in epistatis controls that.

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15y ago

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Related Questions

Why do the testes descend in a human male fetus before birth?

cause testes need a a colder environment to function,if it was in a warmer place of the boddy their function isn't guaranteed


Where does a fetus get food before birth?

fetus


Why do the testes decent in a human male fetus before birth?

The testes descend in a human male fetus before birth to ensure optimal conditions for sperm production and fertility. The descent occurs from the abdominal cavity into the scrotum, where the cooler temperature is necessary for spermatogenesis. This process is influenced by hormonal changes, particularly testosterone, and is crucial for the proper development of the male reproductive system. If the testes do not descend properly, it can lead to conditions such as cryptorchidism, which may affect fertility and increase the risk of testicular cancer.


What happens before birth?

before birth the zygote develops first into an embryo and the into a fetus


What area of the fetus will develop into the testes?

The Gonads


What is the time before birth called?

pregnancy


What is Time before birth during the development of the fetus?

The required time for the development of a fetus is called gestation or pregnancy.


What is the period of growth before birth called?

Gestation, and the baby is called a fetus.


Why do boys have testes?

Men have testes because they produce sperm, which is necessary for the fertilization of ova. This fertilization results in the development of a fetus.


Where are the testes located before a baby is born?

In the fetus, the testes are in the abdomen. As development progresses they migrate downward through the groin and into the scrotum. This event takes place late in fetal development, during the eighth month of gestation.


What is different between embryo and fetus?

An Embryo is a stage before Fetus, the Fetus is more developed than an Embryo, the stage of Birth and a baby being more developed than a fetus.


What is the function of umbilical vein in fetus after birth?

It nourishes the fetal pig.