SAT High School

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

Answers

Answer 1

Answer:

duplication  

Explanation:

Inversion

If 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.

Translocation

If 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.

Insertion

Talking 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 2

Answer:

duplication

Explanation:just did it and got it right.

Related Questions

Other Questions
Which of these foods is a major source of both protein and fat? A. peas B. bread C. cheese or D. oil What is the decimal value of sin S?(Round your answer to the nearest thousandth if necessary.) The function h=-16t^2 +1700 gives you the height h, of an object in feet, at t seconds. How long will it take the object to hit the ground ?Round to the nearest hundresth of a second? Sweet t saved 20% of the total cost of the green-eyed fleas new album let three be fleas on the earth .If the regular price is $30 how much did sweet t save? Two triangles are congruent if:a) each pair of corresponding sides is congruentb) two pairs of corresponding angles are congruent and a pair of corresponding sidesare congruentc) two pairs of corresponding sides and the angles included between them arecongruentd) If three sides of one triangle are congruent to three sides of a second triangle,e) If two angles and a non-included sides of each triangle are congruent The box of cereal contained 1 1/4 pounds of cereal. How many ounces of cereal were in the box? Which waves can travel through a vacuum? A)light waves Eliminate B)ocean waves C)sound waves D)mechanical waves Communicable diseases that are uncontrollable what do you think the american solider meant by the statement germans, and a german-so different? Running is my favorite thing to do.Running is being used as:a gerund working as a verba participle working as a nouna participle working as a verba gerund working as a noun A 20kg boy on a 5 kg skateboard coasts to a rest from a speed of 4.5m/s while traveling a distance of 20m on the sidewalk. Draw a free body diagram for this situation and calculate the acceleration of the skateboard, the force of friction on the skate board and the coefficient of friction between the skateboard and the sidewalk. What is the role of the judicial branch in the American system of checks and balances?To interpret the laws and the Constitution.To preside over impeachment trials in Congress.To create new laws for the United States of America.To rule on whether laws or executive actions violate the Constitution. Triangle ABC has vertices at A(2,3),B(-4,-3) and C(2,-3) find the coordinates of each point of concurrency. Circumcenter ________Orthocenter ________Can someone please help me with this? and if you can explain how to do it? Lyla grew 16 flowers with 2 seed packets. How many seed packets does Lyla need to have a total of 40 flowers in her garden? Assume the relationship is directly proportional. ____ seed packets a number tripled increased by five is six If it is 2:00 pm in South Carolina (SC), what time is it in eastern Montana (MT)? Please help. I need to know the strategy, the correct work, and to identify the error. Psalms consists of _____ books, each containing a collection of Psalms.a. seventeenb. tenc. fived. eleven An object with a mass of 70 kilograms is supported at a height of 8 meters above the ground, what's the potential energy of the object with respect to the ground? Which course of action would the WTO take if member A tries to impose a trade barrier against member B?A. Member A would be suspended from the WTO.B. Member B would receive trade grants from the WTO.C. Member A would receive trade sanctions from the WTO.D. The trade barrier would be considered null and void.E. Member B would be directed to issue trade barriers against member A. Steam Workshop Downloader