Which change in a gene's DNA sequence would have the least effect on the eventual amino acid sequence produced from it?
A.
Deletion of two consecutive nucleotides
B.
Addition of one nucleotide
C.
Addition/deletion of three consecutive nucleotides
D.
Substitution of one nucleotide AND addition of 1 nucleotide
C
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The DNA sequence capable of pairing with 5' CGATTAGT 3' is:
A. 5' CGATTAGT 3'. B. 5' GCTAATCA 3'. C. 3' CGATTAGT 5'. D. 3' GCTAATCA 5'. 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 know about base pairing? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? 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?
All of the organisms living together in a particular habitat and their interactions with their non-living environment are called which of the following?
a. biomes b. populations c. ecosystems d. communities
Segmentation genes, such as the pair-rule class, are inherited through mitochondrial DNA in Drosophila
Indicate whether the statement is true or false
Considering that virtually all cells in any given individual contain the same genetic information, how is it possible to
have different cell types with unique functions? a. Gene expression is regulated such that different cell types produce different proteins. b. All cells express all proteins encoded in an organism’s genes, but turn them on selectively. c. Gene expression is regulated based on the age of the organism. d. Only some cell types make protein products, while others do not. e. Cells lose unneeded genes with each cell division.