The type of DNA repair that corrects errors due to oxidative damage by replacing one to five nucleotides is
A) mismatch repair.
B) base excision repair.
C) roto-rooter repair.
D) photoreactivation.
B) base excision repair.
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According to these data, what is the distance, in centimorgans, between these 2 gene loci? (Enter the number only without the units. For example, 100 cM would be entered as 100)
In the fruit fly Drosophila, there is a dominant gene for normal wings and its recessive allele for vestigial wings. At another gene locus on the same chromosome, there is a dominant gene for red eyes and its recessive allele for purple eyes. A male that was heterozygous at both gene loci was mated with a female that was homozygous for both recessive alleles and the following results were observed among the offspring: Normal wings and red eyes - 420 Vestigial wings and red eyes - 80 Normal wings and purple eyes - 70 Vestigial wings and purple eyes - 430 What will be an ideal response? Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain? Gather Content · What do you already know about linkage mapping by recombination? 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?
You have decided to repeat Palade’s experiments on the endomembrane system. You think you’ve done everything correctly, but when you observe your final sample under the microscope, you find that the entire endomembrane system contains tiny black dots. When you look at later timepoints you see the same thing. What part of the experiment did you forget?
A. You forgot to add radioactive amino acids. B. You forgot to add osmium tetraoxide. C. You forgot to add nonradioactive amino acids. D. You forgot to add the silver-containing emulsion. E. You didn’t forget anything, this is what the experiment is supposed to look like.
The __________ sensations arise from sensory receptors located in skin, or near muscles or joints. Fill in the blank(s) with the appropriate word(s)
What type of cell signaling uses neurotransmitters to innervate its target organ?
What will be an ideal response?