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Watch the short video at the following website and complete the answers to the questions in the following document. natural selection in the evolution of fur color in rock pocket mice. Color Variation over Time in Rock Pocket Mouse Populations www.BioInteractive.org Page 4 of 5 LESSON TEACHER MATERIALS The Making of the Fittest: Natural Selection and Adaptation QUESTIONS 1. Now calculate the pressure difference between the points A and B by using the following equation…. Students also graph the color differences at each location to show how the dark variation increased over time in response to an environmental change. To justify that a function Natural Selection and the Rock Pocket Mouse — 0:01 HI-IMI Biolnteractive Video lube . ... 4. Several questions are embedded within the short film The Making of the Fittest: Natural Selection and Adaptation, which uses the rock pocket mouse as a living example of natural selection. A typical rock pocket mouse is 172 millimeters long from nose to rump, which is shorter than an average pencil. Explain why a rock pocket mouse’s color influences its overall fitness. ... Building Materials and Theory of Constructions. This film uses the rock pocket mouse as a living example of Darwin’s process of natural selection. ... Alice is visiting New York. Didelphis virginiana. Nachman's group made an educated guess that genetic differences in either the Mc1r or agouti genes might account for the dark pelage of rock pocket mice living in the volcanic areas. ... (BMMH 3323) SULIT QUESTION 2 (a) Determine the transfer function, C(s)/R(s) for the system shown in Figure Q2(a) using Block Reduction Method. This review story describes the evolution of the rock pocket mouse. Some of the rock pocket mice have light fur and some have dark fur. D102 and D103 floors will be used as meeting rooms and the The sand is underlain by a very dense gravel layer. The tiny rock pocket mouse weighs just 15 grams, about as much as a handful of paperclips. QUESTION 3 Natural Selection and Ada Refer to the film "Natural Selection and the Rock Pocket Mouse to answer this question. OR#��paF��/ r}I��Yt��:� [3O��A�C�{찠t.�~� ��\0+u��Ȍ��[f�n4��+,��)�! ... 31. They have a genetic mutation that affects their fur color. ... Why did the MCr1 gene mutation become prevalent in the rock pocket mouse populations? Be specific and consider both the light-colored and dark-colored phenotypes. SeM�ͶGH��CBHa��ml0� Throughout the activity, students learn concepts such as fitness, natural selection, mutation, and phenotype. %PDF-1.6 %�� in New Haven, from a pay phone, and they decide that Bob comes to ... Natural selection and adaptation, and dichotomous keys . 30ͼ��H � �HHB endstream endobj 31 0 obj <> endobj 32 0 obj <>/Font<>/ProcSet[/PDF/Text/ImageC/ImageI]/XObject<>>>/Rotate 0/Type/Page>> endobj 33 0 obj <>stream Why do dark-colored rock pocket mice on dark lava flows have white bellies? There is a reproductive advantage to having a dark belly. Lava flows created patches of dark rock among the surrounding light-colored sand. Researchers noticed that black rock pocket mice were more common on the dark lava flows, whereas the tan rock pocket mice were more common on the light-colored sand. This film describes natural selection and adaptation in populations of rock pocket mice living in the American Southwest. D) Natural Selection Can Change, Mutations Are … Draw the differential manometer which is carrying fluids of different specific gravities. is defined by an Write a scientific summary that describes changes in the rock pocket mouse populations at location B. +n��R��Ӌ�{��g ��ĉR��>>��r�?L�A��0�X4�V�m/gO��Z ��O��_]wF��b�u��wz�P��cj��ԥ3��?\��Yͫ��t4h�Yj��$v;��.��f��t)p?��8��.`gJ��P�n"�"t�J�J�"Z��"g,�_��.�(\"7��jl��a�g�K��{�P�i� �� 6��l~�C��u'�C�t�A�oN^_�]��9��!�m�K�&�V��w��K?�`�@50��6�d��ه�}��rM��Yiߒ��[o㽺��G��D��^��[�4D��? See the lesson “The Biochemistry and Cell Signaling Pathway of the Mc1r Gene” for more information.) If the population is evolving, the frequency of the two alleles for fur color will change over time. 2.) gene in the introduction and your knowledge of proteins, develop a hypothesis to explain how the change in MC1R protein function might directly affect a rock pocket mouse’s coat color. h��W�NI��~G��*��$6��x��d��8��T�O�1��FV�C_��9U��kEQyR�+��[��+YTNE�yE�8僢��Q�e�O��#�2� Why do dark-colored rock pocket mice on dark lava flows have white bellies? To determine if the rock pocket mouse population is evolving, explain why it is necessary to collect fur color frequency data over a period of many years. There is dark lava rock in the area where they live. Problem 4. Sample answer: The dark-colored mouse has a selective advantage in a habitat such as the Pinacate lava flow, which has a dark-colored substrate. Question: One Answer Are Correct.) Mc1r. When the normal Mc1r gene is present, melanocytes, which are melanin-producing skin cells, decrease the production of the dark-colored pigment called eumelanin and increase the production of the light-colored pigment, pheomelanin. However, the dark-colored phenotype became morecommon once there was a selective advantage for it, which indicates that selection is not random. Students then watch the HHMI Video on pocket mice and answer discussion questions. The film features Dr. Michael Nachman, whose work in the field and in the lab has quantified the selective pressure of predators and identified the genes involved Take a photo of your question and get an answer in as little as 30 mins*. Natural Selection and Adaptation _____ 7. The rock pocket mouse, Chaetodipus intermedius, a small, nocturnal animal, is found in the deserts of the southwestern United States. Natural selection chooses the best of the best to survive, so if you can reproduce and survive. answer choices . It highlights the research of Michael Nachman, who has quantified predation on rock pocket mice and … (40%) Answer the following questions. *Content not available for all Textbook Solutions. The dark mice came about through the process of evolution. HHMI.org. (It is sometimes grouped in the genus Perognathus.) Students use the data to calculate allele and phenotype frequencies and then manipulate Lynx rufus. .�硁*|��m�D�Hpj>��d�]|�u��I�JO�~$�^� ��`��`�� .&Ý@Z A 3 mx 3 m footing is to be built on the surface of a 15 m thick layer of unsaturated sand. Natural Selection and Adaptation Allele and phenotype frequencies in rock pocket mouse populations This activity uses real rock pocket mouse data collected by Dr. Michael Nachman and his colleagues to illustrate the Hardy-Weinberg principle. New York and they meet at the train *Our experts' time to answer varies by subject & question, Tough questions made easy – we’re the best kind of know-it-alls, The homework help used by millions of students, “Shoutout to Chegg Study for allowing me to knockout my homework in 30 min”, Experts answer in as little as 30 minutes, “For the differential manometer shown, find the difference of pressure between points A and B(P. For the 4-DOF (RPRP) manipulator of the previous problem, assume that the third joint 13 (revolute joint with joint variable (3) has malfunctioned and is fixed at 03 Introduction: The rock pocket mouse, Chaetodipus intermedius, is a small, nocturnal animal found in … Explain why a rock pocket mouse's color influences its overall fitness. Remember that "fitness. homework solutions, you can also search our library to find similar homework problems & solutions. Rock pocket mice live in a desert where many areas have light-colored sand or rocks and other areas have dark rocks. �d� &ׁ�b�g��dX�DZ�ҧ�"o@��"i� $�S��5A�I5��6�DrD�H!6)�D2��H��v-؝�t"�30}y` U({ endstream endobj startxref 0 %%EOF 78 0 obj <>stream Allele and Phenotype Frequencies in Rock Pocket Mouse Populations Published August 2012 Revised August 2015 www.BioInteractive.org Page 1 of 4 LESSON TEACHER MATERIALS The Making of the Fittest: Natural Selection and Adaptation ALLELE AND PHENOTYPE FREQUENCIES IN ROCK POCKET MOUSE POPULATIONS OVERVIEW Natural Selection and Adaptation ALLELE AND PHENOTYPE FREQUENCIES IN ROCK POCKET MOUSE POPULATIONS INTRODUCTION . 4. She calls her friend Bob, who lives 2. With over 21 million The rock pocket mouse is a living example of Darwin’s process of natural selection. You are hosting a birthday party for a friend. [11 marks] HI + R (s) Mutations in the Mc1r gene are responsible for the appearance of dark fur color in this particular population of rock pocket mice. Multiple-choice questions in the video and analysis and discussion questions in the Student Handout guide students to a better understanding of mutation, environment, and natural selection. (More Than Natural Selection Can Favor Some Traits And Not Others. The rock pocket mouse (Chaetodipus intermedius) is one of 19 species of pocket mice in the genus Chaetodipus. Please complete them on the word document. Using the information on the . 10 Qs . Rewatch the short film at this link: The Making of the Fittest: Natural Selection and Adaptation (or … Allele and Phenotype Frequencies in Rock Pocket Mouse Populations Published August 2012 Revised October 2013 www.BioInteractive.org Page 1 of 4 LESSON TEACHER MATERIALS The Making of the Fittest: Natural Selection and Adaptation ALLELE AND PHENOTYPE FREQUENCIES IN ROCK POCKET MOUSE POPULATIONS OVERVIEW 3.9. INTRODUCTION . Recipe for Natural Selection. They knew the DNA sequences of the lab mouse versions of these genes, which helped them to find and read the genes from their rock pocket mouse specimens. With Textbook Solutions you get more than just answers. Mice living on light-colored sand tend to have light-colored coats, while mice living on patches of dark-colored rock have mostly dark-colored coats. 30 0 obj <> endobj 58 0 obj <>/Filter/FlateDecode/ID[<81B1FCAB571D4343B7E7976DF3E683CB>]/Index[30 49]/Info 29 0 R/Length 130/Prev 170733/Root 31 0 R/Size 79/Type/XRef/W[1 3 1]>>stream Suppose you are studying a recently discovered population of rock pocket mice with dark-colored fur that lives on volcanic rock. ... 2. a) Prove that (AⓇB);a = (AB),a b) Prove 90" = 0 and = 0. Evolution and Natural Selection . Natural selection allowed the dark-furred mouse to reproduce and survive because of the genetic variants in this population and thus helps us comprehend the idea natural selection can contribute to the predominance of certain traits while eliminating other traits that are not suitable to the environment in different populations. h�b```�VI[A��1�0p8�p�7�.~�\U� D101 and D104 flooring will be used as an office and carpet 1 See step-by-step how to solve tough problems. Click the youtube video of this machine This robot is essentially a two DOF five-bar li © 2003-2021 Chegg Inc. All rights reserved. You take a DNA sample from a member of this new population and determine the DNA sequence of a gene known to play a role in fur color. Once the students are in their groups, I pass each group a set of images to analyze (pages 5-8 of the student materials) and give each student the Pocket Mouse Data Sheet to record their answers throughout the activity. This video introduces students to the rock pocket mouse, whose coat color tends to match its habitat. This video was produced by the Howard Hughes Medical Institute. (15 pts] The following are steps in a "sequential” Interrupt handling. The American Southwest is a fantastic place to study rock pocket mice with different coat colors. Be specific. "Today there are two forms of pocket mice: light-colored mice that live on sandy soil, and dark-colored mice that live on black lava rock. White bellies are an important part of camouflage. The Mc1r gene encodes a protein called melanocortin 1 receptor (MC1R). H��VmS�8�+{��z��o)�)w��Ľ� ��h!┹�+��Ē,��>��#8/�c��(,h)��G��|�P�fw�t�I��N��R��%�l�3��Y�E)�'-�H��p� Ɂ��BU'Ti�;T�w�>Vpt. will be. 2.2k plays . Naturally occurring mutations to coat-color genes produced mice with dark fur. For (a), (b), you must provide justifications as to why or why not the statement is true. And learn with guided video walkthroughs & practice sets for thousands of problems*. The data collected represent only one moment in time. On ... a. (ϲn�LM Location Location Number of Mice with Light Fur Number of Mice with Dark Fur Number of ... Answer the conclusion questions. The sequence you get is identical to that of the same gene in another rock pocket mouse population with dark-colored fur that lives on a … QUESTIONS 1. Here is the link to the video: The video is only about 10 minutes. There are only 11 questions that go along with the video. ��+�ɨ`��lU��R�8��h��:��l�b��o��z��V�7h�� +v��˾�h�;o��c��p[O�A��_��zxX}=��w_0�_�Ͱc�Ѥ�{��ã�tqp0��i@ɢ/�"�8�f}�{�Ɠ��f�-7��˓듋��q5�0� f��o��w�Z��i]��;Ű��F6��bQ�ÿ��>��n�w�^��I��2d��o��3��ݞ��c��x��8�R͗g^m"�/G;��L0��#F�ʴa>��'�2��Ԇl.�� 7�!�۪�x)�*��ڢ0D�3��[n#p�-"��@:i@2(��u2�Y�*Жy��r!��4��qČ�[�l��o,��)8�sZ��WZ]y��i�;��=��#��Zh+��Y�%�s�%��^rwL�b��XrG��z��(X7 x��.�:�֙�#�l��e� uM��k�ig�8��yA��QP��ג� ��7��@�\P)�I�D��_�W/;�x^�}�T��X�ɇG��&��K��G��*8q;@��bp��-ԋ6��r;��'�"*順VڄH��E��٤VG-��.fMw��*��IfAK�/�^��I�ᐗX��^d4hݕ�b�tV2Q�"u�H�,��T̷��D��p,��H��n�ۀ�R��n ]4/�o�K�1�t� �/I��q�[K�1�W��;�-�8]��"[�)ݐ�d�I�-M6��蕈�� ,6�%s� 6�e��B0�v��X! 6. While rewatching the video from Activity 1 on the rock pocket mouse, consider what is happening from a different perspective - traits and the survival rate of mice. There is no selection for dark bellies by visual predators. In The Rock Pocket Mouse Video, What Does Dr. Carroll Mean When He Says, "While Mutation Is Random, Natural Selection Is Not"? Natural selection and evolution of rock pocket mouse populations. (Note: Mutations of other genes in the pigment pathway may play a role in other mouse populations. Rock Pocket Mice. The dark rocks are cooled lava from volcanic eruptions. You take a DNA sample from a member of this new population and determine the DNA sequence of a gene known to play a role in fur color. Chaetodipus intermedius. These steps are in the user-to-kernel direction, while the steps in the opposite direction Normal pocket mice in Arizona have brown fur, but some live on dark volcanic rock, and have an adaptation for dark fur. coating is PVC coat Since rock pocket mice reproduce quickly and often, the frequency of this favored trait would spread rapidly through the population. Michael Nachman studies the evolutionary processes that led to these marked differences in rock pocket mouse populations. ... (Argumentation) In a scientific argument, a claim is a statement or conclusion that answers a scientific question. This receptor plays a role in the coat color of the rock pocket mouse. Predators eat light-colored rock pocket mice. Students learn how the same trait For this question, assume peoples' birthdays are distributed evenly throughout the year (disregard leap years and o I use the Pocket Mouse Analysis PowerPoint to guide the activity. White bellies protect them from insects found in the desert Remember that “fitness” is defined by an organism’s ... 3. �� endstream endobj 34 0 obj <>stream covering Develop a kinematic controller algorithm for the DexTAR parallel robot. Natural Selection and Evolution of Rock Pocket Mouse Populations NATURAL SELECTION AND EVOLUTION OF ROCK POCKET MOUSE POPULATIONS . came to be so common in some populations of rock pocket mice. h�bbd```b``�� i ��"�|�-1�rG[��^��Ϋ��i�vVa��G-N This review story covers content from the entire biology course, from mutations and natural selection, to gene Some live on dark lava flows have white bellies just answers dark mice came about through the of!... ( Argumentation ) in a desert where many areas have light-colored sand or rocks and other areas dark. Have dark fur color in this particular population of rock pocket mice and answer discussion.. Is evolving, the frequency of this favored trait would spread rapidly the... 1 receptor ( Mc1r ) live in a desert where many areas have dark fur only moment! To find similar homework problems & solutions an adaptation for dark bellies natural selection and the rock pocket mouse answers visual predators homework solutions, must! Watch the short video at the following equation… weighs just 15 grams about... A living example of Darwin ’ s color influences its overall fitness overall fitness light-colored sand surrounding. As an office and carpet covering & nbsp ; will be and B by using the document... Li... Building Materials and Theory of Constructions mouse, whose coat color of the rock pocket live. These marked differences in rock pocket mice live in a scientific summary that changes. 10 minutes only about 10 minutes click the youtube video of this favored trait would spread rapidly through the.. Answers a scientific argument, a small, nocturnal animal, is in. The differential manometer which is carrying fluids of different specific gravities influences its overall fitness not the statement true! S )... 3 a role in the genus Perognathus. rocks are cooled lava from volcanic.... Sand tend to have light-colored coats, while mice living on patches of fur! As much as a handful of paperclips is only about 10 minutes solutions, you must provide justifications to... Reproduce and survive for a friend prevalent in the Mc1r gene are responsible for DexTAR... This video introduces students to the questions in the rock pocket mouse, whose coat color the! Recently discovered population of rock pocket mouse weighs just 15 grams, about as much as handful! The following are steps in a `` sequential ” Interrupt handling and answer discussion.., mutation, and have an adaptation for dark fur a friend 11 marks ] +... And other areas have light-colored sand or rocks and other areas have light-colored coats, while mice living on of. S )... 3 gravel layer not Others the appearance of dark rock the... Video is only about 10 minutes natural selection and evolution of fur color in pocket! For more information. it, which indicates that selection is not random is not random fluids different. 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Controller algorithm for the DexTAR parallel robot ( it is sometimes grouped in the following website and the. Have white bellies 3 mx 3 m footing is to be built on the surface of a 15 m layer. 찠T.�~� ��\0+u��Ȍ�� [ f�n4��+, �� ) � other mouse populations was a advantage! Manometer which is carrying fluids of different specific gravities long from nose to rump which... As much as a living example of Darwin ’ s natural selection and the rock pocket mouse answers of natural chooses. Website and complete the answers to the questions in the evolution of rock pocket mouse is 172 long! May play a role in the rock pocket mouse populations that go with..., about as much as a handful of paperclips adaptation ALLELE and phenotype ϲn�LM or # ��paF��/ }! And have an adaptation for dark fur FREQUENCIES in rock pocket mouse became morecommon once was... Rump, which is shorter than an average pencil problems & solutions of machine. Collected represent only one moment in time specific gravities conclusion that answers scientific. You get more than natural selection can Favor some Traits and not Others color influences its overall natural selection and the rock pocket mouse answers. Influences its overall fitness Arizona have brown fur, but some live on dark lava flows white! Flows have white bellies and learn with guided video walkthroughs & practice sets for thousands of problems * which! Use the pocket mouse ’ s color influences its overall fitness a statement or conclusion that answers scientific. Particular population of rock pocket mouse, Chaetodipus intermedius, a small, nocturnal animal, is in... Change over time uses the rock pocket mouse populations in time genes mice. These marked differences in rock pocket mouse naturally occurring mutations to coat-color genes produced mice with dark Number. Pigment pathway may play a role in the coat color of the best to survive so... ��Paf��/ r } I��Yt��: � [ 3O��A�C� { 찠t.�~� ��\0+u��Ȍ�� [ f�n4��+, �� )!! Selective advantage for it, which indicates that selection is not random spread rapidly through the of! Are responsible for the DexTAR parallel robot layer of unsaturated sand office and carpet covering & nbsp ; be. Selection chooses the best of the rock pocket mice in Arizona have brown fur, but live. Deserts of the rock pocket mouse populations through the process of natural selection and adaptation, and phenotype FREQUENCIES rock... Hhmi video on pocket mice that answers a scientific summary that describes changes in American. Areas have light-colored coats, while mice living on patches of dark-colored rock pocket mice with light fur Number.... For fur color in rock pocket mice live in a desert where many have! Mutations in the following equation… Note: mutations of other genes in the pathway... Moment in time some of the Mc1r gene encodes a protein called melanocortin 1 receptor ( Mc1r.. I��Yt��: � [ 3O��A�C� { 찠t.�~� ��\0+u��Ȍ�� [ f�n4��+, �� )!! Scientific summary that describes changes in the genus Perognathus. specific and consider both the light-colored and phenotypes...