(i) cumbersome = difficult to use
(ii) revert = return
(iii) system
I hope this helps!
Cheers, July.
Prompt
What is your personal ideology? Give your opinion on the three following topics. Justify your support or opposition to each issue by using examples. Issue one: should the government have the right to place a high tax on soda to discourage its consumption and fight teen obesity? Issue two: should the government be allowed to monitor your actions on the internet to keep the nation safe from terrorism? Issue three: should the government be allowed to outlaw texting while driving to keep drivers safer on the road?
A bacterium was found to contain a sequence of ATCGGGATCCT in its genome. A few generations later, the sequence was found to be ATCGGGGGGATCCT. What type of mutation caused this change in the bacteria?
A.
duplication
B.
insertion
C.
inversion
D.
translocation
Answer:
duplication
Explanation:
InversionIf we talk about inversion, it inversion, it is a process in which a specific base sequence is inverted or rearranged in such a way that direction is reversed. For example: ABC is changed into BCA, therefore it is not right option.
TranslocationIf we talk about translocation,it is caused by rearrangement of parts between non homologous chromosomes. It can be balanced or unbalanced but it involves two genes or two sets of chromosomes. But in our example, we have only one sequence of DNA under study, therefore, inversion is not possible.
InsertionTalking about insertion, it involves addition of one or more nucleotide at certain position of gene sequence. There are chances that it can be an insertion of GGG but the insertion of three G instead of any random nucleotide addition or nucleotide sequence addition is rare. So, there are less chances that this is an insertion and more chances that this is an exact duplication event.
Duplication:If we talk about duplication, a certain portion of a gene or chromosome is replicated or duplicated in such a way that it results in more than one copies of that region.
Keeping that definition infront, we see that GGG duplicated to GGGGGG. So, if we logically look at the question, duplication seems to be the most appropriate option.
Hope it help!
Answer:
duplication
Explanation:just did it and got it right.