rbean unike thoir closast relative the Black Bear have white fur Agenetic mutation has changed the gene that codes for fur color This change in fur color has allowed this species to migrate to more northem re it was camouftaged in the snow Based on this example, which of the following most appropriately describes genetic mutations? Mutations are unnatural processes that reduce genetic diversity Mutations are natural processes that can increase genetic diversity Mutations are unnatural processes that are always harmful to genetic diversity Mutations are natural processes that always affect the physical traits of organisms

rbean unike thoir closast relative the Black Bear have white fur Agenetic mutation has changed the gene that codes for fur color This change in fur color has allowed this species to migrate to more northem re it was camouftaged in the snow Based on this example, which of the following most appropriately describes genetic mutations? Mutations are unnatural processes that reduce genetic diversity Mutations are natural processes that can increase genetic diversity Mutations are unnatural processes that are always harmful to genetic diversity Mutations are natural processes that always affect the physical traits of organisms

Name: Polar beans unike their closast relative the Black Bear, have white f
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Description: Polar beans unike their closast relative the Black Bear, have white fur A genetic mutation has changed the gene that codes for fur color This change in fur color has allowed this species to migrate to more northern rewhere it was camouftaged in the

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter19: Population Genetics And Human Evolution

Section: Chapter Questions

Problem 18QP

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Similar questions

A common misconception about mutations is that they are always harmful. What is the reality of mutation effects on an organism? O Mutations can be harmful, neutral, or beneficial, and they drive genetic variation Mutations are always harmful and decrease genetic variation Mutations are always neutral and have no effect on genetic variation Mutations are always beneficial and increase genetic variation
Which of the following has an impact on the rate at which mutations occur in cells? (Choose All That Apply) the magnitude of an environmental change the number of times DNA is replicated the size of the genome of an organism the frequency of cell division
Although genetic variation is required for species to adapt tochanges in their environment, most genetic changes are detrimental. Explain why genetic mutations are rarely beneficial.
Which of the following statements accurately describes genetic mutations? * Mutations are a natural process that increases genetic diversity. Mutations are an unnatural process that always affect the phenotype. Mutations are an unnatural process that are always harmful. Mutations are a natural process that only effects genotype, not phenotype.
The reason spontaneous mutations do not have an immediate effect on allele frequencies in a large population is that: a. mutations are random events, and mutations may be eitherbeneficial or harmful. b. mutations usually occur in males and have little effect oneggs. c. many mutations exert their effects after an organism hasstopped reproducing. d. mutations are so rare that mutated alleles are greatlyoutnumbered by nonmutated alleles. e. most mutations do not change the amino acid sequence of aprotein.
Point mutations, like the single-nucleotide substitution in human sickle-cell trait, illustrate which of the following evolutionary features? mutations are never detrimental and always advantageous, regardless of the environment mutations might be either advantageous or detrimental, depending on the environment mutations are always detrimental and never advantageous, regardless of the environment mutations are neither advantageous nor detrimental, regardless of the environment mutations are always both advantageous and detrimental, regardless of the environment
a rice species low high diverged six five whole genomes gene families homologous genes Duplication a new function gene order stayed the same common ancestor Genes that are essential for survival usually have mutation rates. of an essential gene results in two copies in the genome. One copy may retain the original function while the other copy is free to evolve Duplications of genes and their subsequent alteration is thought to be the basis for or groups of similar genes with slightly different functions.. One gene, several genes, or even the can be duplicated. All cereal grasses (including rice, wheat, barley, sorghum, and corn) have blocks of that are located on two separate chromosomes. Within the blocks, is conserved, but the DNA sequences have The evidence suggests that all cereal grass species evolved from a with 12 chromosomes that are derived from a whole genome duplication in a species with chromosomes followed by other chromosome rearrangements and divergence. Reset
Many plants (and some animals) have defensive chemicals to protect themselves from predation. How did these compounds evolve? Choose All That Apply there was a mutation in an existing gene that resulted in a new enzyme function Oa different (or slightly altered) compound was made that was slightly toxic to other organisms plants/animals with the toxic compound were eaten less there was a mutation in a gene as a result of the plant/animal being eaten presence of the toxic compound reduced the fitness of the plant/animal the gene that codes for the enzyme that produces the toxic compound became more prevalent
A common misconception about evolution is that O it does not have a goal genetic mutations are always passed on to the next generation environmental changes cause genetic mutations
Many plants (and some animals) have defensive chemicals to protect themselves from predation. How did these compounds evolve? Choose All That Apply there was a mutation in an existing gene that resulted in a new enzyme function Oa different (or slightly altered) compound was made that was slightly toxic to other organisms O plants/animals with the toxic compound were eaten less O there was a mutation in a gene as a result of the plant/animal being eaten O presence of the toxic compound reduced the fitness of the plant/animal U the gene that codes for the enzyme that produces the toxic compound became more prevalent
What effects do mutations have on organisms? O All mutations are harmful because they disrupt protein function or gene regulation % All mutations are beneficial to organisms because they improve protein function or gene regulation All mutations have no effect on organisms, because they do not significantly affect protein function or gene regulation Some mutations are harmful, some are beneficial, and some have no effect on the organism
What is NOT true about mutations? Group of answer choices Without mutations, there would be no genetic variation Mutations are usually deleterious Mutations are a relatively weak force of evolution Mutations are always balanced with natural selection