Chromosomal aberrations:
A. are caused by errors during meiosis.
B. are typically only seen in the elderly.
C. are usually fixed by DNA polymerase.
D. can be caused by methylation.
E. are not described by any of the answer
A
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What is the likely consequence of a mutation that alters the branch point within an intron?
A. no effect, since introns are not expressed B. failure to form a lariat C. failure of snRNPs to recognize the 5' end of intron D. no exon shuffling E. failure of snRNAs to combine with protein and form snRNPs Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about splicing? Consider Possibilities · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
How does probability differ from actuality?
What will be an ideal response?
Insulators exert their effects on gene expression through histone acetyltransferase, histone deacetylase, and RNA polymerase
Indicate whether the statement is true or false
Potato spindle-tuber disease, which causes potatoes to become gnarled and cracked, is caused by an infectious agent consisting of a small circular RNA molecule that totally lacks a protein coat. These infectious agents are thought to exert their effects by interfering with the cell's normal path of gene expression. Such an infectious agent is known as a(n) __________.
A) eviscerion B) viroid C) provirous D) bacteriophage E) virunette