Explain how linear DNA can be supercoiled
What will be an ideal response?
In eukaryotes with linear chromosomes, regions of DNA can be supercoiled if their ends are anchored to chromatin proteins that serve as a structural framework, or lattice.
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The most common type of population distribution is ____
a. clumped b. uniform c. random d. near-uniform e. semi-random
If nondisjunction occurs during meiosis I, ____
a. two gametes will be normal and two will be missing one chromosome b. two gametes will be normal and two will have one extra chromosome
c. three gametes will be normal and one will have two extra chromosomes d. all gametes will be normal e. all gametes will be abnormal
Which of the following statements regarding scald burns is correct?
A) Once hot liquids come in contact with clothing, heat is rapidly dissipated. B) Scald burns often cover large surface areas because liquids spread quickly. C) Scald burns caused by grease or oil are typically limited to the epidermis. D) Scald burns are less commonly seen in pediatric patients than adult patients.
Cell membranes consist mainly of a __________.
A) carbohydrate bilayer and proteins B) protein bilayer and phospholipids C) lipid bilayer and proteins