List at least 4 factors or agents which can cause damage to DNA.

asap pls! Thanks!

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?

What’s a example of extrusive rock that cooled to quickly for grains to form

4. multiple crosses were made between true-breeding lines of black and yellow labrador retrievers. all the f1 progeny were black. when these progeny were intercrossed, they produced an f2 consisting of 91 black, 39 yellow and 30 chocolate. a. propose an explanation for the inheritance of coat color in labradors. b. propose a biochemical pathway for coat color determination and indicate how the relevant genes control coat coloration.