The Y-chromosome.
Think of it this way: Each person contains the genes to be a female. These genes are inherited on the X-chromosome which every normal person has. However, if you have a Y-chromosome, you now posses the genes to make a male, and are thus will be a male.
The embryo of a human develops in the uterus of the female body. The uterus provides a protective and nourishing environment for the embryo to grow and develop into a fetus.
We call these sex chromosomes. Whether you are a male or female depends on the presence or absence of certain chromosomes. The sex chromosomes are the X chromosome and the Y chromosome. If you have two XX, you will show female characteristics and If you have XY you will show male characteristics.
It takes about 74 days for a sperm to fully develop in the human body.
Fingers and toes develop during the first trimester of pregnancy in a human fetus.
Human embryos develop in the uterus, specifically in the lining of the uterus called the endometrium. The fertilized egg implants itself into the endometrial lining where it will continue to grow and develop into a fetus.
The embryo of a human develops in the uterus of the female body. The uterus provides a protective and nourishing environment for the embryo to grow and develop into a fetus.
Whether they have 2 X chromosomes= girl, of one X chromosome and one Y chromosome= boy
XX is the typical chromosomal pattern for a normal human female. It signifies that she inherited one X chromosome from each parent. This combination of chromosomes determines her biological sex as female.
An avatar is a god in human form. This is not a tradition. Whether you believe in the existence of a god or gods, and whether you believe that gods can take human form determines whether this is a myth or a reality for you.
In humans, which sex chromosome determines if an offspring is a male or female?
I believe that whether animal or human, female is the best.
The key factor that determines whether a resource is renewable or nonrenewable is the rate at which it can be replenished naturally. Renewable resources can be naturally replenished within a human lifetime, while nonrenewable resources are finite and cannot be easily replaced.
The genes that are carried in the sperm to the ova. If the 23rd chromosome of the sperm is 'X', the offspring will be female. If it is 'Y', the offspring will be male.
Fertilization typically occurs in the fallopian tube of the human female reproductive system. Sperm and egg meet and fuse to create a single cell called a zygote, which will eventually develop into an embryo.
The male gamete - spermatozoon and the female gamete - ovum.
Thyroid gland determines the rate at which human body utilizes energy.
The themes that begin to develop is the books exploration of the moral nature of human beings, that is whether people are essentially good or essentially evil.