pa sagutan po please
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pa sagutan po please
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1. Almost everyone has around a 50% chance of having a boy and a 50% chance of having a girl.
2.In most industrialized countries about 105 boys are born for every 100 girls, for a ratio of 1.05, known as the secondary sex ratio, or SSR; the primary sex ratio is the ratio at conception. This is often expressed as the percentage of boys among all births, or about 51.2 percent.
3.When a child's gender is not clear at birth, the child has atypical genitalia (ambiguous genitalia). This means that the genitals don't seem to be clearly male or female.
Atypical genitalia can be a difficult experience for families.
4.In humans, sex is determined by sex chromosomes (XX females, XY males). The X and Y chromosomes harbor dramatically different numbers and sets of genes (about 1,000 genes on the X and only a few dozen genes on the Y), yet they originated from ordinary autosomes during the early evolution of mammals (Figure 1).