GENETICS(LL)-W/CONNECT >CUSTOM<
6th Edition
ISBN: 9781260571561
Author: HARTWELL
Publisher: MCG CUSTOM
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Chapter 20, Problem 7P
B cells are specialized blood cells that secrete antibodies. Normally, human blood has millions of different types of B cells making millions of different kinds of antibody molecules. This variety occurs because, as described in the Fast Forward Box in Chapter 13 entitled Programmed DNA Rearrangements and the Immune System, antibody genes undergo rearrangements in the precursors of B cells. Individual B cell precursors rearrange their antibody genes in different ways.
In the blood of patients with cancers called B cell lymphomas, almost all of the antibody molecules are all of one type, but this single type of antibody is different in different lymphoma patients.
| a. | Based on this information, provide a brief description of the genesis of B cell lymphomas, focusing on the cells that are overproliferating. |
| b. | How does the nature of B cell lymphomas provide support for the clonal theory of cancer shown in Fig. 20.6? |
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Chapter 20 Solutions
GENETICS(LL)-W/CONNECT >CUSTOM<
Ch. 20 - For each of the terms in the left column, choose...Ch. 20 - Characterize the differences between tumor cells...Ch. 20 - Prob. 3PCh. 20 - Prob. 4PCh. 20 - A carcinogenic compound is placed on the skin of...Ch. 20 - You have decided to study genetic factors...Ch. 20 - B cells are specialized blood cells that secrete...Ch. 20 - Molecules outside and inside the cell regulate the...Ch. 20 - Put the following steps in the correct ordered...Ch. 20 - a. Would you expect a cell to continue or to stop...
Ch. 20 - Two different protein complexes called SCF and APC...Ch. 20 - One of the hallmarks of mitotic anaphase is the...Ch. 20 - Concerning the Tools of Genetics Box Analysis of...Ch. 20 - Are genome and karyotype instabilities...Ch. 20 - Prob. 15PCh. 20 - Why dont all loss-of-function mutations that are...Ch. 20 - Chromothripsis is a rare phenomenon, first...Ch. 20 - The chromosome 9/22 translocation associated with...Ch. 20 - A female patient 19 years old, whose symptoms are...Ch. 20 - Prob. 20PCh. 20 - A generic signaling cascade is shown in the...Ch. 20 - Neurofibromatosis type 1 NF1; also known as von...Ch. 20 - Families with germ-line BRCA1 or BRCA2...Ch. 20 - The text explained that retroviruses can cause...Ch. 20 - Hepatocellular carcinoma is the most frequent form...Ch. 20 - Suppose that instead of microarrays, you analyzed...Ch. 20 - Prob. 27PCh. 20 - Glioblastoma multiforme GBM is the most common and...Ch. 20 - a. The legend to Fig. 20.29 identifies which of...Ch. 20 - The website CBioPortal http://www.cbioportal.org...
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