Why do different types of cells do different jobs even though they contain the same dna

Why is xylem known as a dead tissue

Motion that causes two bones to move further apart from each other is known as:

How are cyclotrons used to create synthetic elements?

All multicellular organisms begin as a progency or stem or tissue cell?

Which example describes an inherited trait that cannot be determind by observing an individual

What evolutionary traits separate the races of man?

Which of the statements about enzymes are true? Generally, an enzyme is specific for a particular substrate. For example, thrombin catalyzes the hydrolysis of the peptide bond between Arg and Gly.

What information do viral genes contain? A. directions for producing cellular proteins B. instructions for making more viruses C. instructions for DNA synthesis D. directions for invading the host cell

To conduct a phylogenetic analysis, we need an outgroup to: A. decide which characters are analogous and which are homologous. B. determine which character states are ancestral and which are derived. C.

Only homologous characters are useful in constructing phylogenetic trees. True or False