Image: Chris Doyle. Some birds grow funny-coloured feathers where they're not meant to. Here's a male blackbird that's a great example. This condition is called partial albinism, and it's usually inherited but can be caused by other factors.Some birds have just one or two white feathers, while others can be white all over or with big white blotches.ere's a male blackbird that's a great example. This condition is called partial albinism, and it's usually inherited but can be caused by other factors. Some birds have just one or two white feathers, while others can be white all over or with big white blotches.
DNA Paternity Testing (sometimes called parentage testing) uses DNA, the biological basis of inheritance, to prove or disprove the relationship between a child and an alleged father. It is based on the fact that we inherit half of our DNA from our fathers and half from our mothers.
A complex testing for blood transfusion is called cross-matching. Otherwise, simple fingerpricks can also determine which blood type a person has. And if someone knows their biology well, they can put a sample of their own blood under a microscope and as long as they know what to look for, they can identify their blood type. ABO & Rh is the standard typing test.