60) If a cell were unable to produce histone proteins, what would be a likely ef
ID: 148632 • Letter: 6
Question
60) If a cell were unable to produce histone proteins, what would be a likely effect? 61) Which of the following statements describes histones? A) Each nucleosome consists of two molecules of histone H1. B) Histone H1 is not present in the nucleosome bead; instead it is involved in the formation of higher- level chromatin structures. C) The carboxyl end of each histone extends outward from the nucleosome and is called a "histone tail." D) Histones are found in mammals, but not in other animals or in plants E) The mass of histone in chromatin is approximately nine times the mass of DNA. 62) Why do histones bind tightly to DNA?Explanation / Answer
60. If there is no histone formation in the cell then there will be no package and order DNA in to small structural units called nucleosome. DNA wrap around histone so they play important role in gene regulation so there will be problem in this function also due to lack of histone.
61. B
62.histone contain many positively charged amino acid making it overall positively charged and DNA is negatively charged due to phosphate groups so both are opposite charged attract each other and bind tightly ..
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