1 A genetic mutation causes a lizard to have faster reflexes. After manygenerations, most of the lizards in in the population has the reflexmutation. Which of the following most likely caused this change? *Other lizards learned to copy the strategies of the mutated lizard.The lizard passed on its mutated gene to other adult lizards.The mutation was contagious.Lizards with the mutation are better able to survive and reproduce than lizards withe mutation.

An alteration in the sequence of DNA is referred to as a mutation. Mutagens, viruses, cell division…

Answered: A genetic mutation causes a lizard to…

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter18: Genetics Of Behavior

Section: Chapter Questions

Problem 12QP: Animal Models: The Search for Behavior Genes You are a researcher studying an autosomal dominant...

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Hox genes are activated in specific regions of the body (e.g. back of the head) and activate other genes to build specific structures in those regions. This was largely discovered by looking at the effects of mutants of the various hox genes. What other technique would provide information on the action of hox genes? Group of answer choices A. copy hox genes and place them in bacteria B. copy hox genes and place them in plants C. completely remove all hox genes from the genome D. change the control of hox genes so that they are expressed in different body regions E. reverse the order of the hox genes on the chromosome
The English peppered moth has two main colour variations, white and black. Black soot from pollution helped black moths camouflage and blend in with their surroundings. In the 1950s, the populations of white moths began to increase. What can you conclude? Question 3 options: Air pollution decreased Air pollution increased Black moths were forced to adapt and change white to avoid being eaten The white moths developed another mutation that prevented them from finding mates The air pollution killed the birds that ate the moths
Which statements explain the most likely cause of the difference between the hands of chimpanzees and those of gorillas? Select the three correct answers. O A single nucleotide base in the enhancer sequence changed, which caused an activator protein to bind to the enhancer sequence. Several individual chimpanzees all developed the same mutation at the same time, which caused them to grip branches better. Chimpanzees used their hands for climbing more than gorillas did, so their DNA mutated to disable enhancers and caused their hands to develop differently from those of gorillas. The exchange of pieces of DNA between alleles during sexual reproduction caused new combinations of DNA to form. An individual had a genetic mutation that resulted in a hand structure with a selective advantage that was passed on to offspring. O Mutations in the enhancer sequences in chimpanzees resulted in the production of new activator proteins.
On an island with no large predators, some ducks are born with a mutation that gives them stubby little wings. These ducks can’t fly, but there’s really no need to fly since there are no predators. In fact, they have an advantage because they don’t have to eat as much to support those big wings like the other ducks. Over time, the flightless ducks reproduce better than the regular ducks, and eventually all the regular ducks die out. What characteristic of life is being demonstrated here? Group of answer choices development high complexity evolution requirement for resources irritability
The L gene in cats controls if they like to sit on your laptop (L) or on the book you are reading (I). L is dominant to I. The F gene controls how much fur cats shed. FF cats shed a lot, Ff cats some, and ff cats shed a little. The C gene controls how sharp their claws are: C is sharp, which is dominant to c. But it is a bit more complicated... Because the R gene controls how well they can retract their claws. rr cats cannot retract their claws, and thus, they are always touching the ground and are never sharp. Only RR or Rr cats have a possibility of sharp claws. The A gene is useful when cats are angry. AA cats growl. aa cats hiss. Aa cats growl and hiss. All of these genes are unlinked. These cats mate: Dad: LI Ff Cc Rr Aa Mom: II Ff Cc rr aa a) Which gene acts co-dominantly? b) Which gene acts partially/incompletely dominantly? c) How many types of gametes can each parent make? Show work. d) LIST all the gametes the mom cat can make. What fraction of the kittens (SHOW WORK for EACH…
Animal Models: The Search for Behavior Genes You are a researcher studying an autosomal dominant neurodegenerative disorder. You have cloned the gene underlying the disorder and have found that it encodes an enzyme that is overexpressed in the neurons of individuals who have the disorder. To better understand how this enzyme causes neurodegeneration in humans, you make a strain of transgenic Drosophila whose nerve cells overexpress the enzyme. a. How might you use these transgenic flies to try to gain insight into the disease or identify drugs that might be useful in the treatment of the disease? b. Can you think of any potential limitations of this approach?
You are working in a lab that studies stickleback fish. These fish normally have three spines that occur on the back of the stickleback. One day you notice that a young stickleback has no spines on its back but instead has three spines growing out of the top of its head! (answer both questions) question 1: A mutation in what type of gene is probably the cause of this unusual situation? Why? question #2: would you expect the proteins that make the spines to be different in the mutant fish compared to a wildtype fish. Why or why not?
Opsin proteins detect light in photoreceptor cells of theeye and are required for color vision. The nocturnal owlmonkey, the nocturnal bush baby, and the subterraneanblind mole rat have different mutations in an opsin genethat render it nonfunctional. Explain why all three species can tolerate mutations in this gene that operates inmost other mammals.
A snake species that has migrated from the mainland to a small island eats banana slugs instead of lizards and mice, its usual diet. Which statement best explains this change in behavior? O The genotype that affects food choice is not isolated to a single phenotype. O Instinctual food choice by snakes is not related to genotypic flexibility. O Diet is exclusively controlled by snake genetics, not by nature. O Gene expression for mainland snakes is rigid and confined to one phenotype.
According to the scenario to what effect does this mutation have on the albino lizards?
Cloning is the process of creating genetically identical organisms. One simple method of cloning is called artificial embryo twinning. In this process, an early stage embryo is separated into two groups of cells. Each group of cells is then allowed to develop. The embryos are then implanted into the surrogate mother. Each embryo is genetically identical to the other. Some pregnancies in humans have a similar result. Explain how identical twins are formed. Compare and contrast the natural formation of identical twins to the artificial embryo twinning process. Explain how the formation of identical twins or the process of artificial embryo twinning differs from the formation of fraternal twins.

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