What is one piece of evidence that supports the hypothesis that cancers are clonal?

What is one piece of evidence that supports the hypothesis that cancers are clonal?
A) A tumor grows in a single anatomical site.
B) All cells from the same cancer have identical mutations.
C) All cells from the same tumor have identical karyotypes.
D) All cancer cells from a heterozygous woman have the same X chromosome inactivated.
E) Individuals of all ages, including children, can develop cancer.


D) All cancer cells from a heterozygous woman have the same X chromosome inactivated.

Biology & Microbiology

You might also like to view...

A chromosomal mutation where a segment breaks off, flips, and then reattaches itself is called a(n):

A. inversion. B. duplication. C. translocation. D. deletion. E. reciprocal translocation.

Biology & Microbiology

Which of the following could be found in or on the nasal epithelium of mammals?

A. a layer of mucus B. olfactory receptors C. basal cells that give rise to olfactory receptors D. supporting cells between olfactory receptor cells E. All of these choices are correct

Biology & Microbiology

Which one of the following methods of antimicrobial susceptibility testing is the most popular method in the United States? (Note: information about susceptibility testing can be found on the CD-ROM that accompanies this book.)

A) agar dilution method B) disk-diffusion method C) macro broth dilution method D) micro broth dilution method

Biology & Microbiology

Which of these would be an effect of an excess of thyroid hormones?

A) More thyroid hormone would be produced. B) A would release less TRH. C) B would release more TSH. D) The thyroid would swell and produce a goiter.

Biology & Microbiology