Histone variants may be found in nucleosomes
a. that are present during double-strand break repair.
b. that are disrupted during active transcription.
c. in centromeric regions.
d. that compact chromatin in sperm cells.
e. All of the above.
Ans: e
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Which of the following groups consume animals?
a. carnivores and herbivores b. carnivores and omnivores c. omnivores and herbivores d. carnivores only e. herbivores only
This image depicts the concept of
1.the chemical reaction of antioxidants.
2.a protein being built as peptide bonds form between amino acids.
3.DNA being built as peptide bonds form between amino acids.
4.all of the choices
In the process of organismic respiration:a
oxygen is extracted from the environment by the organism and delivered to its cells. b. the citric acid cycle takes place in the cells. c. carbohydrates are broken down and electrons are transferred to oxygen. d. there is an accumulation of lactic acid in the tissues due to the absence of oxygen. e. carbon dioxide is produced in the Krebs cycle
A ______________________ is the synapse between a motor neuron and the muscle it controls
Fill in the blank(s) with the appropriate word(s).