Which of the following statements is TRUE?
A. Interphase chromosomes are loosely compacted and do not associate with histones until the cell is preparing to divide.
B. Interphase chromosomes are loosely compacted, overlapping, and intertwined with each other within the nucleus.
C. Interphase chromosomes are also known as euchromatin. Condensed, metaphase chromosomes are also known as heterochromatin.
D. Radial loop domains are formed due to interactions between 30 nm fibers and intermediate filaments.
E. None of the answers are true.
Answer: D
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Let us suppose that someone is successful at producing induced pluripotent stem cells (iPS) for replacement of pancreatic insulin-producing cells for people with type 1 diabetes. Which of the following could still be problems? I
the possibility that, once introduced into the patient, the iPS cells produce nonpancreatic cells II. the failure of the iPS cells to take up residence in the pancreas III. the inability of the iPS cells to respond to appropriate regulatory signals A) I only B) II only C) III only D) I, II, and III
________ can also be used to differentiate strains of microorganisms that differ in the antigenic composition of a structure or product.
Fill in the blank(s) with the appropriate word(s).
The second law of thermodynamics says that during energy transformations, some of the energy will be lost as which of the following?
a. chemical bonds b. position c. heat d. motion
Ordinary cell division produces two daughter cells that are genetically identical. This type of cell division is important for all of the following functions EXCEPT ________
A) growth of a multicellular organism B) cell replacement C) production of sperm and eggs D) asexual reproduction