Which of the following is NOT true regarding Hox genes. A) The sequence they appear in their corresponding chromosomes is the same order of their expression along the front to back of the developing animal. B) Homologues of the same Hox genes found in flies can be found in humans. C) Hox genes are only found in animals with bilateral symmetry. D) Animals with more complex body plans tend to have more sets of Hox genes through gene duplication events.

Which of the following is NOT true regarding Hox genes. A) The sequence they appear in their corresponding chromosomes is the same order of their expression along the front to back of the developing animal. B) Homologues of the same Hox genes found in flies can be found in humans. C) Hox genes are only found in animals with bilateral symmetry. D) Animals with more complex body plans tend to have more sets of Hox genes through gene duplication events.

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter17: Developmental Genetics

Section: Chapter Questions

Problem 12TYU

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If myoglobin is found in all chordates, urochordates, and cephalochordates, b-globin is found in all vertebrates, a-globin in all ostracoderm descendants, z-globin in all gnathostomes, e-globin in all viviparous mammals, and g-globin in all placental mammals, then the most ancient of these genes: must be epsilon-globin (e-globin), found only in descendants of the ancestral marsupials must be myoglobin, found only in descendants of the chordates, urochordates, and cephalochordates must be gamma-globin (g-globin), found only in descendants of the ancestral placentals must be zeta-globin (z-globin), found only in descendants of the ancestral gnathostome fishes must be beta-globin (b-globin), found only in descendants of the ancestral vertebrates
How many globin genes are present in mammals? What is the evidence indicating that all the globin genes in the mammalian genome are part of a family derived from a common ancestral globin gene?
If myoglobin is found in all chordates, urochordates, and cephalochordates, b-globin is found in all vertebrates, a-globin in all ostracoderm descendants, z-globin in all gnathostomes, e-globin in all viviparous mammals, and g-globin in all placental mammals, then the most recent globin gene must be: epsilon-globin (e-globin), found only in descendants of the ancestral marsupials myoglobin, found only in descendants of the chordates, urochordates, and cephalochordates gamma-globin (g-globin), found only in descendants of the ancestral placentals zeta-globin (z-globin), found only in descendants of the ancestral gnathostome fishes beta-globin (b-globin), found only in descendants of the ancestral vertebrates
How do the Hox genes of vertebrates differ from those of cephalochordates?
Which statement about Hox genes is false? a. They are expressed in similar patterns in the embryos of both mice and flies. b. They include a conserved region of base pairs called the homeobox. c. They are arranged in similar clusters of genes in both mice and flies. d. They are part of the so-called genetic toolkit. e. Because of their important functional roles, they evolved rapidly in both mammals and flies.
What controls hox genes expression in vertebrates?
Select all that is true of hox genes/proteins 1.They contain the homeobox domain 2.They contain helix-turn helix motifs 3.They are commonly phosphorylated 4.They bind DNA 5.The can effect segmental identity 6.They control the anterior - posterior axis 7.They are maternal effect genes
What is the function of insulator sequences?What does Hox genes stand for? What is a sequence of homeobox genes?
If myoglobin is found in all chordates, urochordates, and cephalochordates, b-globin is found in all vertebrates, a-globin in all ostracoderm descendants, z-globin in all gnathostomes, e-globin in all viviparous mammals, and d-globin in all eutherian mammals, then the most recent globin gene must be: myoglobin, found only in descendants of the chordates, urochordates, and cephalochordates zeta-globin (z-globin), found only in descendants of the ancestral gnathostome fishes epsilon-globin (e-globin), found only in descendants of the ancestral marsupials beta-globin (b-globin), found only in descendants of the ancestral vertebrates delta-globin (g-globin), found only in descendants of the ancestral eutherians
An adult human has a flat face with a small jaw and large cranium. An adult chimpanzee has a large jaw and small cranium. Both juvenile chimps and humans have heads similar to adult humans. Which of the following is a reasonable explanation for this pattern? Group of answer choices A) genes that modify skull shape are not expressed in chimps during development B) head shape is controlled by cytoplasmic determinants C)genes that modify skull shape are not expressed in humans during development D) chimps and humans have completely different genes controlling the formation of the head
What other genes besides ARHGAP11B distinguish us from our closest relatives, the chimpanzees and bonobos?
The following are various developmental phenomena relating to the concepts and principles in developmental biology. A. Concept of apoptosis B. Concept of prefomed guidelines C. Concept of programmed gene action D. Concept of capacity E. Concept of fate F. Concept of environmental influences G. Concept of induction H. Concept of progressively formed guidelines I. Concept of Differentiation J. Concept of guidelines K. Concept of Gradient L. Concept of differentiation Question #1. The intestine is derived from the endoderm. What concept? Question #2. Metamorphosis in frog. What concept? Question #3. An endodermal cell taken from a late gastrula stage grafted in the region of the ectoderm developed into stomach. What concept?

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		A) The sequence they appear in their corresponding chromosomes is the same order of their expression along the front to back of the developing animal.
		B) Homologues of the same Hox genes found in flies can be found in humans.
		C) Hox genes are only found in animals with bilateral symmetry.
		D) Animals with more complex body plans tend to have more sets of Hox genes through gene duplication events.