A gene whose expression helps to identify transformed cell is known as what?

Contrast euchromatin and heterochromatin. Then explain how DNA can transition from one to the other. Use the terms histone, nucleosome, and acetylation.

Select the statements that accurately describe different ways that translocations could lead to cancer. A translocation breaks up the sequence of a gene for a protein that stimulates apoptosis. The resulting protein cannot function properly. A gene for a protein that stimulates apoptosis is placed next to a regulatory sequence that increases the expression of the gene. A translocation breaks up a gene that encodes a protein required to pass through mitotic checkpoints. The resulting protein cannot function normally. A gene for a protein that is involved in a mitotic checkpoint is placed next to the regulatory sequence of a different gene. The gene is now expressed at inappropriate times. A new sequence is added to a proto-oncogene. The modified gene now produces a new protein that increases the rate of cell division.

Describe the process of cloning by somatic cell nuclear transfer?