A patient has a large colon carcinoma with a hypochromic (iron-deficiency) anemia. The anemia is probably due to which of the following?
A. Chronic blood loss from the ulcerated surface of the tumor
B. Impaired absorption of nutrients caused by the tumor
C. Poor appetite
D. Metastases to the liver
Question 2
All of the following statements about chromosomal mosaicism are correct EXCEPT:
A. The affected person has more than one population of chromosomally distinct cells.
B. Mosaicism results from chromosome nondisjunction occurring in the ovum before fertilization.
C. Mosaicism results from chromosome nondisjunction during a mitotic division of the fertilized ovum (zygote).
D. Persons with mosaic Down syndrome often have less disability than those in whom all the cells contain an extra chromosome 21.
E. Mosaicism may occur in association with other chromosomal abnormalities as well as Down syndrome.
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