____ genes are regulated by segmentation genes and control the development of specific structures within particular segments. Each of these genes contains a highly conserved 180-base pair region called the ____. Examples of such genes are: ____ which regulates the development of wings in the thoracic segments and ____ which regulates the development of compound eyes and ommatidia.

genes are regulated by segmentation genes and control the development of specific structures within particular segments. Each of these genes contains a highly conserved 180-base pair region called the . Examples of such genes are: which regulates the development of wings in the thoracic segments and which regulates the development of compound eyes and ommatidia.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter27: Introduction To Animal Diversity

Section: Chapter Questions

Problem 3VCQ: Figure 27.9 Which of the following statements about diploblasts and triploblasts is false? Animals...

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The Brachyury and Tbx5 in vertebrates and the Ap3 gene in flowering plants a. are examples of Hox genes. b. are examples of co-opting a gene for a new function. c. are homologues for determining the body plan of eukaryotes. d. help regulate the formation of appendages.
Which of the following are documented effects of Hox genes? Choose all that apply. Group of answer choices 1-Hox genes determine where body parts like legs will form 2-Hox genes determine lactase persistence in humans 3-Hox genes determine the general orientation of the body, where is the head end and where is the back end. 4-Hox genes determine how many vertebrae a vertebrate animal will have
describe one way in which limb development in Acanthostega could differ from that in modern tetrapods (e.g., mouse, human) to generate this digit pattern. Your description must include the name of at least one specific gene and at least one basic cellular mechanism.
Birds are unique because they have modified forelimbs which serve as wings and a body covered in feathers. However, just having wings and feathers does not mean that an organism can fly (look at the ostrich and penguin!). Please discuss at least 3 of these additional characteristics/adaptations that are required in order for birds to fly.
Figure 27.9 Which of the following statements about diploblasts and triploblasts is false? Animals that display radial symmetry are diploblasts. Animals that display bilateral symmetry are triploblasts. The endoderm gives rise to the lining of the digestive tract and the respiratory tract. The mesoderm gives rise to the central nervous system.
Development of an animal is controlled by the genes that are expressed during development. What roles have been proposed for Hox genes in the evolution and morphology of animal species? Group of answer choices 1. Variation in the Hox genes may have spawned the formation of many new body plans. 2. All of these descriptions are correct. 3. The number and arrangement of Hox genes varies among different types of animals. 4. Increases in the number of Hox genes may have led to greater complexity in body structure.
Insects have three thoracic (trunk) segments. While researchershave found insect fossils with pairs of wings on all threesegments, modern insects have wings or related structureson only the second and third segment. It turns out thatin modern insects, Hox gene products act to inhibit wingformation on the first segment. The treehopper insect (above)is somewhat of an exception. In addition to having wingson its second segment, the treehopper’s first segment has anornate helmet that resembles a set of thorns, which a recentstudy has found to be a modified, fused pair of “wings.” Thethorn-like structure helps to camouflage the treehopper intree branches, thus reducing its risk of predation. Explain howchanges in gene regulation could have led to the evolution ofsuch a structure.
Which of the following examples from class show that a mutation can have evolutionary benefits? Group of answer choices C) Hox mutations that lead to legs developing on fruit flies where antennae should be A and B A, B, and C B) Hox mutations leading to limbs with digits forming from lobe fins A) Stickleback fish mutation
Read the article on the bat's wings (link below). The author seems to disagree that evolution is involved in the bat wing's development. Do you agree or disagree? Why?https://www.icr.org/article/how-bat-get-its-wings/
According to the film, "Your inner reptile," which of the following did we inherit from our reptilian ancestors? A) A yolk sac which is present in our embryonic stage B) our skin C) remnants of yolk-producing in our genome D) All of the above
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Discuss the idea that every evolutionary adaptation has both advantages and disadvantages, using each of the following as an example: (a) cephalization,(b) the arthropod exoskeleton, and (c) segmentation with specialization.