Embryos can be male or female.
If cells within a male embryo do not secrete testosterone at the proper time during development, the embryo will develop into a female despite being genetically male.
A Female ovum and a Male sperm fuse to create a zygote cell. It is the earliest developmental stage of the embryo.
because male is different from female
In humans, gender is determined by the x and y chromosomes, with xx being a genetic female and xy being a genetic male
Embryos can be male or female.
If cells within a male embryo do not secrete testosterone at the proper time during development, the embryo will develop into a female despite being genetically male.
14 weeks
yes
A Female ovum and a Male sperm fuse to create a zygote cell. It is the earliest developmental stage of the embryo.
Different bwtween male and female kidney
because male is different from female
An embryo, male or female, usually has two sex chromosomes, one from mom, one from dad. In a male's case, they would be XY. Rarely, nondisjunction occurs, and a child winds up XXX, XXY, XYY, or X. XXX and X become female, and XXY and XYY become male. So, it is theoretically possible for a male embryo to have three sex chromosomes.
do female and male arthropods look different
In humans, gender is determined by the x and y chromosomes, with xx being a genetic female and xy being a genetic male
It's called asexual reproduction, when there is no male contribution, or there is no male-female differentiation. Parthenogenisis
The male gamete - spermatozoon and the female gamete - ovum.