Which of the following genes is believed to have resulted from a favorable mutation, and has been highly conserved for billions of years? A. the gene for antennapedia in fruit flies B. the gene for sickle-cell anemia C. the gene for cystic fibrosis in humans D. the gene for histone H4 E. the gene for hemophilia in humans

Which of the following genes is believed to have resulted from a favorable mutation, and has been highly conserved for billions of years? A. the gene for antennapedia in fruit flies B. the gene for sickle-cell anemia C. the gene for cystic fibrosis in humans D. the gene for histone H4 E. the gene for hemophilia in humans

Name: Which of the following genes is believed to have resulted from a favor
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Description: Which of the following genes is believed to have resulted from a favorable mutation, and has beenhighly conserved for billions of years?A. the gene for antennapedia in fruit fliesB. the gene for sickle-cell anemiaC. the gene for cystic fibrosis in hu

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

Chapter14: Gene Regulation

Section: Chapter Questions

Problem 6TYU

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Which of the following is NOT an outcome of a point mutation? A) position effect B) no effect at all on the phenotype of an organism C) the last half of a protein is not made D) an intron is not removed resulting in a frame-shifted protein E) temperature-sensitive protein
A promoter is ______. a. a specific sequence of DNA nucleotides b. a specific sequence of RNA nucleotides c. a protein that binds to DNA d. an enzyme that synthesizes RNA
If a mutation deletes the start codon in a eukrayotic gene, which of the following most accurately describes its consequence? A. There will be no mRNA or polypeptide made. B. The mRNA will be made but no polypeptide is made. C. The mRNA will not be processed properly. D. Nothing will happen. It is a silent mutation.
The CFTR gene is very well conserved from mice to humans. What conclusions can you make about CFTR based on this information? A. The coding sequence of the CFTR gene is less susceptible to mutation B. CFTR is just as susceptible to mutation as other genes, but many CFTR mutations are lethal thereby preventing them from being passed on C. The protein encoded by the CFTR gene has a critical function in those organisms D. A and C only E. B and C only
Sickle cell anemia is a disease caused by a mutation at the genotypic level. A person with two copies of the gene has the disease, but a person with one copy of the gene does not have the disease. The diagram shows how this mutation affects an organism. Use the image to answer the question. The mutation causes the deformity of the red blood cell, the component of blood that carries oxygen throughout the body. The deformed cells can clump together and can clog blood vessels. The parasites responsible for the sickle cell condition are killed in the deformed red blood cells. In which type of environment would carriers of the disease be naturally selected for? A. low altitude B. high altitude C. low population of parasites D. high population of parasites
how would alterning patterns of gene expression in prokaryotes would most likely serve an organism's survival? In a single point mutation, when the RNA and amino acid changes it is called ? what is the DNA sequence called?: 3”TTC ATT TAC TTT CGT TCA TAT TGT ACG ACT CGG TTA5”
A gene mutation changes a base pair from AT to GC. This change causes a gene to encode a truncated protein that is nonfunctional. An organism that carries this mutation cannot survive at high temperatures. Make a list of all the genetic terms that could be used to describe this type of mutation.
Muscle cells differ from nerve cells mainly because they(A) express different genes.(B) contain different genes.(C) use different genetic codes.(D) have unique ribosomes.
What might best explain why the incidence of cancer increases as people age? Select one: a. mutations accumulate as people age b. cell division increases as people age c. protein synthesis increases as people age d. telomerase activity increases as people age e. ATP production increases as people age
Which of the following statament is NOT TRUE about gene expression?a. The expression of genes that code for proteins includes two stages: replication and translationb. Translation is the synthesis of a polypeptide using the information in the mRNA.c. During gene expression, the information encoded in genes is used to make specific polypeptide chains or RNA molecules.d. Gene expression is the process by which DNA directs the synthesis of proteins
Which of the following best explains how the prokaryotic expression of a metabolic protein can be regulated when the protein is already present at a high concentration? a.Repressor proteins can be activated and bind to regulatory sequences to block transcription. b.Regulatory proteins can be inactivated to increase gene expression. c.Transcription factors can bind to regulatory sequences to increase RNA polymerase binding. d.Histone modification can prevent transcription of the gene.
If a mutation deletes the promoter in a eukrayotic gene, which of the following most accurately describes its consequence? A. There will be no mRNA or polypeptide made. B. The mRNA will be made but no polypeptide is made. C. The mRNA will not be processed properly. D. Nothing will happen. It is a silent mutation.