Cancer is an improperly regulated cell cycle. What are two reasons cells can form tumors? Interphase takes too long

Mitosis occurs too quickly

Cytokinesis duplicates the incorrect number of chromosomes

Too little cell divison

The first gap phase does not add enough cell wall

Too much cell division

Explanation:

When cells grow old or become damaged, they die, and new cells take their place. Sometimes this orderly process breaks down, and abnormal or damaged cells grow and multiply when they shouldn't. These cells may form tumors, which are lumps of tissue.

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides