Chromosomes are tiny threadlike structures found in the nucleus of the cell that contain all of an organism's genetic material in a very condensed state. Chromosomes are made up of DNA along with chromosome-associated proteins, called histones. Histones help wind up all of the DNA contained in...
Describe the differences in gene expression control between a repressible and an inducible bacterial operon. Briefly explain why silent mutations in the DNA sequence of a gene do not alter the function of the protein product of that gene. Explain the regulation of gene expressio...
The packing of DNA is When DNA is wrapped around unique protein molecules called histones, the process begins. A nucleosome is a DNA-protein loop that has been joined. Answer and Explanation: There are three layers of the structural arrangement of eukaryotic DNA in the cell ...
Describe the cell structure and function of eukaryotes, prokaryotes, and viruses. Which of the following terms conceptually related to the ribosome? Explain your answer for each term.\\ 1. Antibiotics\\2. Electron transfer\\ 3. Glycolysis\\ 4. Histones\\...
Describe the function of DNA polymerase I in leading strand synthesis in DNA synthesis. In eukaryotes. DNA is wrapped with proteins, forming a complex called chromatin. There are 5 types of histone proteins in chromatin: H1, H2A, H2B, H3, and H4. Explain why there are more H2A histone mol...
Describe the procedure of reproductively cloning a mammal using the somatic cell nuclear transfer method. How do stem cells in an embryo differentiate into different cells when they have the same amount of DNA and histones? a. What is the difference between a somatic and ...
Describe the structure of bacterial DNA. DNA in Eukaryotes The DNA of eukaryotes are located in the nucleus of cells that is surrounded by a nuclear membrane. The DNA is packaged as chromosomes. Chromosomes are linear DNA wound tightly around proteins called histones. The ends of chromosomes are...