Patho Mid term Chamberlain nr507 Exam with Verified Answers (Graded A+ )

Patho Mid term Chamberlain nr507 Exam with Verified Answers (Graded A+ ) 1. Housekeeping genes are vital to the function and maintenance of all the body's cells. What characteristic is associated with these genes? - CORRECT ANSWER D. They are transcriptionally active. 2. Mutations in the encoding of histones modifying proteins have been shown to influence the development of what congenial condition - CORRECT ANSWER Heart disease 3. Signals to change or modify epigenetic tags are ... from where? - CORRECT ANSWER Signals come from inside the cell, from neighboring cells or the environment 4. During which stage of human development does the role of epigenetics have the greatest impact on the development of epigenetic abnormalities - CORRECT ANSWER A. In utero 5. The difference between DNA sequence mutations and epigenetic modifications is? - CORRECT ANSWER Epigenetic modifications are REVERSIBLE 6. Explain the characteristics of totipotent stem cells and the sources of it - CORRECT ANSWER Totipotent cells are cells that can mature into any type of body cell in an organism including the cells that make up the placenta in mammals. Totipotent cells are only present in mammals in the first few cell divisions of an embryo. 7. Give 2 examples of totipotent cells - CORRECT ANSWER A zygote Cells in the early embyro up to 5 days 1. What is a Totipotent cell? - CORRECT ANSWER Totipotent cells are cells that can differentiate into any type of body cell and extra embryonic tissue 2. What are the characteristics of Prader-Willi syndrome? - CORRECT ANSWER 1. Chronic feeling of hunger (severe, even life-threatening obesity) 2. Low muscle tone 3. Short 4. Poor sex characteristic development 5. Behavioral problems 6. Poor cognitive development 1. Angelman syndrome is sometimes called "happy puppet syndrome." What ar