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Mother and father each have two chromosomes that determine sex. Mother has two X chromosomes, father has one X and one Y. You inherit one from each parent. Get an X from Mom, and a X from Dad, you're a girl. Get an X from Mom (only kind she has) and a Y from Dad, you're a boy.
What else can I help you with?
How do you know the crocodiles gender?
Crocodile embryos do not have sex chromosomes (which determine the sex of a child in humans) and sex is not determined genetically in crocodiles. The sex of a crocodile is determined by temperature -- with males around 31.6 degrees Celsius (89 degrees Fahrenheit) and with females at slightly lower or higher temperature.
A genetically determined characteristic?
Trait
How is an albino formed?
Albinism is genetically determined.
What is genetically determined proteins on the sufraces of RBSs?
antigens
What is the difference between 'sex-liked' and 'sex-determined'?
Sex-liked means liking sex and sex determined is the resolution to have sex.
What is A behavior that is genetically determined and that cannot be modified?
Instincts are behaviors that are genetically determined and cannot be modified. These are innate behaviors that animals are born with and are typically crucial for survival.
In what condition is crocodile sex formed?
The sex of developing crocodilians is determined by the incubation temperature of the eggs. This means crocodilians do not have genetic sex determination, but instead have a form of environmental sex determination which is based upon the temperature embryos are subjected to early in their development. Crocodile embryos do not have sex chromosomes, and unlike humans sex is not determined genetically. Sex is determined by temperature, with males produced at around 31.6 °C, and females produced at slightly lower and higher temperatures. The average incubation period is around 80 days, and also is dependent upon temperature.
Immunity that is genetically determined and present at birth is called?
innate
Is the sex of a second child determined by the sex of the first?
No, the sex of the second child is determined independently of the sex of the first child. The chances of having a boy or a girl are generally close to 50/50 regardless of the sex of any previous siblings.
How early is your sex determined?
conception
Explaine the sex of an infant is genetically determined at conception.?
Male sex is tied directly to the Y sex chromosome. The Y chromosome codes for the proteins and enzymes that cause the changes that makes one phenotypically male. Any fetus without a Y chromosome will be genotypically and phenotypically female, only by lack of those proteins and enzymes mentioned before. Given that one sex chromosome comes from the ovum and one comes from the sperm, which fuse at conception, the genotypic and phenotypic sex of the fetus is determined at the time of conceptual fusion of the spermatozoa and ovum.
Why does Kieron have a huge nose?
Kieron has a huge nose because that is what his genetic material determined for him. Noses come in all shapes and sizes and are genetically determined.
