Using specific works by recognized authors of their time, Morrison considers the role of religion and the church, violence and the law, and humor and satire, in the literature of both countries. The book also explores the role of women, race, and class in the literature of both countries. It concludes with a discussion of the tenacity of national myths, and draws some tentative conclusions."--BOOK JACKET.
From George Washington Carver to Dr. Mae Jemison, African Americans have been making outstanding contributions in the field of science. This unique resource goes beyond the headlines in chronicling not just the scientific achievements but also the lives of 100 remarkable men and women. Each biography provides an absorbing account of the scientist's struggles, which often included overcoming prejudice, as they pursued their educational and professional goals.
Psychology in Action, 12e is a comprehensive introductory Psychology product that fosters active learning and provides a wealth of tools that empower students to master and make connections between the key concepts. Students will leave the classroom with a solid foundation in basic psychology that will serve them in their daily lives no matter what their chosen field of study and career path.
A tumour suppressor gene is a gene that reduces the probability that a cell in a multicellular organism will turn into a tumor cell. A mutation or deletion of such a gene will increase the probability of the formation of a tumor. Unlike oncogenes, tumor suppressor genes generally follow the 'two-hit hypothesis', which implies that both alleles that code for a particular gene must be affected before an effect is manifested. This is due to the fact that if only one allele for the gene is damaged, the second can still produce the correct protein. However, there are cases where mutations in only one allele will cause an effect. A notable example is the gene that codes for p53. Tumor suppressor genes, or more precisely, the proteins for which they code, either have a dampening or repressive effect on the regulation of the cell cycle or promote apoptosis, and sometimes do both. This book presents new and important research from throughout the world.
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