Answers to Biology Questions

I've heard that there's a single origin for the emergence of Homo sapiens. Is there any scientific background...

We have a picture of my wife's father in the police force in 1947. He's wearing a hat and holding a truncheon...

How can someone extract and sequence DNA from something that's been buried for centuries?

When you have DNA left on a piece of clothing, how do modern techniques match the DNA with the guilty suspect?

What is the possibility of erroneous matching of DNA? There was a case I saw about 8 years ago in which a man was...

I've heard that bone marrow transplants can cause havoc with DNA testing. Is this the case, and if so, how can the...

Is there any such thing that could erase or change DNA?

If human and worm DNA are so similar, why are we so different?

How many different types of DNA can you get?

I have a stepson who has fragile X syndrome. He was diagnosed at the age of eight and is 28 now. I'm interested in...

How can maggots be used in health care and experiments?

Why is it that some children are born with dark hair and then go very fair when they get older, and similarly, why do...

How do butterfly wings get all their colours?

Is it true that talking to plants helps them grow better?

Why do insects have more legs than humans?

What is the most powerful insect, and can fly the furthest?

If I cut off my finger, why don't cells keep on dividing and give me a new finger? They gave me a finger when I...

I found head lice on an elderly lady I was looking after and used a special shampoo that the doctor told me to use. But...

Can animal fleas live on humans?

When you yawn, why do your eyes water? Is it normal?

How did the American chicken live for seven years with its head chopped off?

Is left handedness genetic, and are left handed people more artistically creative?

If you had a stem cell transplant, would your DNA change?

Eels manage to move from one bit of water to another. To do this they must go over land. How do they do it?