The simplest type of variation in a genome sequence is a single nucleotide change called a(n)
What will be an ideal response?
single nucleotide polymorphism (SNP)
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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?
What causes the annual growth rings of trees?
A. Residual bark left over when the trunk of the tree expands B. Damage caused by fungi that occurs during the wetter months C. Different growth rates at different times of the year D. Sugars left over from the previous summer
In which region of the plant are you most likely to find cells dividing by mitosis?
A. The growth rings B. The sapwood C. The meristem region D. The heartwood
Which of the following is NOT a characteristic
of Sinosauropteryx prima?
a. downy feathers b. long tail c. claws d. long flight feathers e. all of these are characteristics of Sinosauropteryx prima