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ID: A Name: 72. A gene that controls a battery of other genes that are responsib

ID: 268691 • Letter: I

Question

ID: A Name: 72. A gene that controls a battery of other genes that are responsible for the development of stractures such as a a limb daring a limbic gene b. sex-linked geae devclopement i is called a(a) c. homeotic gene d. epigenetic gene 73. Despite differiag significantly in form, chimpanzees and humans have genoenes that are nearly identical, since they differ by a.1% b. only 400 genes c.2% d, 2296 Which of the following is an example of a buman atavistic trair? a humans born with tails b. humans born with hairy pinnae 74. c. d. having a widow's peak colorblindness 75. The discipline of taxonomy involves a. the description of the relationship between anatomy and physiology the classification of organisms into groups based os morphological or genetic similaritics the determination of the morphometric properties of the living world construction of evolutionary trees that illustrate the patterns of species evolution is known as c the study of specific atavistic and vestigial characteristics d. 76. The b. phylotaxonomy c. evolutionary developmental biology d. phylogenetics 77. You are studying the relationships between a number of organisms. You begin by cataloging their bomologous traits. Organisms A and B share 23 homologous traits. In addition, organisms B and C share 14 homologous traits, while organisms A and C share 11 homologous traits. Based on these preliminary findings, what can you conclade from these data? a. Organisms B and C are most closcly related. b. Organisms A and C are most closely related c. Organisms A and B are most closcly related. d. Organisms A, B, and C are related to each other to similar extents 78. Which of the following are unique to mammals and the most recent common ancestor of mammals but a. fur and teeth b. fur and mammary glands c. d. mammary glands and teeth teeth and an opposable thumb 79. Which of the following is NOT a correct scientific name? a. Homo sapiens b. Homo erectis c. Habilis homo d. Gallus gallus 12

Explanation / Answer

72. C. Homeotic gene.

Homeotic genes regulate the development of segments or body parts during early development.

73. A. 1%

74. A. Humans born with tails.

Atavism refers to reappearance of ancestral triat in a modified form in present living forms. Tail is the ancestral triat which is considered was present in human ancestral forms but was lost during the course of evolution.

75. B. Classification of organisms into groups based on morphological amd genetic similarities.