Which of the following is a characteristic of mutations in DNA? Select one: O a. They result in different versions of a gene within the population. O b. They are usually expressed and result in positive changes for the individual. O c. They usually occur at very high rates in most genes O d. Those that occur in the body cells of a parent are usually passed on to their children. Oe. They are always expressed and cause significant problems for the individual.

Which of the following is a characteristic of mutations in DNA? Select one: O a. They result in different versions of a gene within the population. O b. They are usually expressed and result in positive changes for the individual. O c. They usually occur at very high rates in most genes O d. Those that occur in the body cells of a parent are usually passed on to their children. Oe. They are always expressed and cause significant problems for the individual.

Body Structures & Functions Updated

13th Edition

ISBN:9780357191606

Author:Scott

Publisher:Scott

Chapter22: Genetics And Genetically Linked Diseases

Section: Chapter Questions

Problem 2RQ

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Mutations in DNA may or may not result in a change in the phenotype of an organism. In which of the following situations will a mutation appear in the phenotype of an individual? The mutation occurs in an organism which is past reproductive age The genetic code for protein synthesis has not been altered in a gamete producing cell The mutation occurs in a body cell of the organism, resulting in cancer O The mutation results in a change in the amino acid sequence of the protein in a gamete producing cell
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Which of the following statements concerning genes are true? Select all that apply. A gene is a segment of DNA that determines a certain trait.A gene is a segment of DNA that determines a certain trait. An allele is a variation of a given gene. Genes contain information that codes only for proteins involved in the regulation of gene expression.Genes contain information that codes only for proteins involved in the regulation of gene expression. Genes are not responsible for the expression of traits.Genes are not responsible for the expression of traits. Allele variations are due to small changes in the nucleotide sequence within the gene that sometimes change the structure of a protein and ultimately its function.Allele variations are due to small changes in the nucleotide sequence within the gene that sometimes change the structure of a protein and ultimately its function.
Transgenic mice and other model animals are used to study human neurodegenerative disorders to O produce tissues for transplantation O develop animals with desirable traits. produce genes for gene therapy. research molecular mechanisms of a human disorder. all of the choices are possible.
Which of the following best describes genome wide association study? genomes of diseased and healthy individuals are compared to identify the mutations that cause disease molecular markers are identified that are unique to diseased genomes the frequency of molecular markers alleles are compared between diseased and healthy individuals to identify alleles at higher frequency in diseased individuals tumor genomes are sequenced to identify genes with unusual expression patterns individuals from diverse human populations are sequenced to identify how they are related to each other
If you have a mutation in your skin cells from falling asleep in a tanning bed, how will this affect your offspring? Group of answer choices It won't affect them because mutations cannot be passed down to offspring It will affect their entire body because their entire body grew out of the fertilized egg It will affect your offspring's skin cells only It may affect them, depending on whether those particular skin cells are passed on to them It won't affect them because the mutation is not in a gamete
What choice best descirbes how genes are used in different cell types in your body. An example of different cell types are muscle and brain cells. (level 2) All cells in the human body have the same genes and every cell uses every gene. All cells in the human body have the same genes but different cell types express (use) different genes. All cells have the same chromosomes but different cell types have different genes. MacBook Air %23 %24 & 3 5 8. E R Y D F J K C V command .. .- V
Which of the following statements best describes the effect of mutations in DNA? A Mutations result in changes that can be positive, be negative, or have no consequences B Mutations result in changes that always have negative consequences C Mutations result in changes that cannot be detected unless it is revealed by genetic screening D Mutations result in changes that have no consequences
For a mutation that does not have a fitness cost to the individuals who carry it, we call the mutation a -synonymous mutation -beneficial mutation -dominant mutation -homologous mutation -neutral mutation
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
Cystic fibrosis is caused by a mutation in a gene resulting in changes to a protein that regulates the movement of salt in and out of cells. The result is thick, sticky mucus in the respiratory, digestive and reproductive systems. Which application of genetic engineering is a promising treatment for cystic fibrosis? O Gene therapy. DNA recombination. OGel electrophoresis. DNA fingerprinting.
In what order does the genetic information flow in living organisms? Choose all that are true. genetic information can be rewritten from protein to DNA genetic information can be translated from RNA to protein genetic information can be rewritten from DNA to RNA genetic information can be rewritten from protein to RNA genetic information can be rewritten from RNA to DNA