The cause of p53-related cancers is

A) fetal cells that remain in a child or adult, dividing too frequently.

B) continual expression of the telomerase gene, which keeps cells dividing.

C) deletion of cell cycle checkpoint genes.

D) failure to repair damaged DNA, allowing the cell to continue dividing.


D) failure to repair damaged DNA, allowing the cell to continue dividing.

Biology & Microbiology

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In freshwater sponges and other simple freshwater

animals, water flows into the body by __________. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

RNA synthesis is also known as:

a. elongation. b. reverse transcription. c. termination. d. translation. e. transcription.

Biology & Microbiology

The process illustrated in Figure 3-1 is called:a

condensation. b. protein synthesis. c. hydrolysis. d. dehydration synthesis. e. denaturation

Biology & Microbiology

Identify the structure indicated by #1:

A. uterus B. cervix C. vagina D. ovary E. fallopian tube or oviduct

Biology & Microbiology