Holding the two chains of a dna molecule together are bonds.

Why aren't the stains like crystal violet and safranin washed away with water during simple staining?

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone

What evidence did mendel find that supported his law of independent assortment? a. some traits are controlled by several different genes. b. a trait can be passed on from a parent to an offspring. c. most traits have a dominant form and a recessive form. d. different traits are passed on independently of each other.