BIOL.CONCEPTS+INVERTIGATION-ACCESS CARD
4th Edition
ISBN: 9781260195316
Author: Hoefnagels
Publisher: INTER MCG
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Textbook Question
Chapter 7, Problem 12WIO
The roundworm C. elegans has 556 cells when it hatches. Each cell contains the entire genome but expresses only a subset of the genes. Therefore, the cells "specialize" in particular functions. List all of the ways that a roundworm cell might silence the unneeded genes.
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Chapter 7 Solutions
BIOL.CONCEPTS+INVERTIGATION-ACCESS CARD
Ch. 7.1 - How did Griffiths research, coupled with the work...Ch. 7.1 - How did the Hershey-Chase blender experiments...Ch. 7.2 - What are the components of DNA and its...Ch. 7.2 - What evidence enabled Watson and Crick to decipher...Ch. 7.2 - Prob. 3MCCh. 7.3 - What is the relationship between a gene and a...Ch. 7.3 - Prob. 2MCCh. 7.3 - What are the three types of RNA, and how does each...Ch. 7.4 - What happens during each stage of transcription?Ch. 7.4 - Where in the cell does transcription occur?
Ch. 7.4 - What is the role of RNA polymerase in...Ch. 7.4 - What are the roles of the promoter and terminator...Ch. 7.4 - How is mRNA modified before it leaves the nucleus...Ch. 7.5 - How did researchers determine that the genetic...Ch. 7.5 - What happens in each stage of translation?Ch. 7.5 - Where in the cell does translation occur?Ch. 7.5 - How are polypeptides modified after translation?Ch. 7.6 - What are some reasons that cells regulate gene...Ch. 7.6 - Prob. 2MCCh. 7.6 - Prob. 3MCCh. 7.6 - Prob. 4MCCh. 7.7 - What is a mutation?Ch. 7.7 - What are the types of mutations, and how does each...Ch. 7.7 - Prob. 3MCCh. 7.7 - Prob. 4MCCh. 7.7 - How are mutations important?Ch. 7.8 - What question about the FOXP2 gene were the...Ch. 7.8 - What insights could scientists gain by...Ch. 7 - A nucleotide is composed of all of the following...Ch. 7 - Prob. 2MCQCh. 7 - Transcription copies a _______ to a complementary...Ch. 7 - Choose the DNA sequence from which this mRNA...Ch. 7 - Prob. 5MCQCh. 7 - Prob. 6MCQCh. 7 - How does the lac operon regulate lactose digestion...Ch. 7 - Prob. 8MCQCh. 7 - Prob. 9MCQCh. 7 - Prob. 10MCQCh. 7 - Explain how Griffiths experiment and Avery,...Ch. 7 - Prob. 2WIOCh. 7 - Prob. 3WIOCh. 7 - Put the following in order from smallest to...Ch. 7 - Prob. 5WIOCh. 7 - List the three major types of RNA and their...Ch. 7 - Some people compare DNA to a blueprint stored in...Ch. 7 - Prob. 8WIOCh. 7 - Prob. 9WIOCh. 7 - If a protein is 1259 amino acids long, what is the...Ch. 7 - The amount of melanin in the skin is controlled by...Ch. 7 - The roundworm C. elegans has 556 cells when it...Ch. 7 - Refer to the figure to answer these questions: a....Ch. 7 - A protein-encoding region of a gene has the...Ch. 7 - Explain how a mutation in a protein-encoding gene,...Ch. 7 - Describe the mutation shown in figure 7.27 and...Ch. 7 - Parkinson disease causes rigidity, tremors, and...Ch. 7 - Prob. 18WIOCh. 7 - Refer to figure 7.28 and the chapter con tent to...Ch. 7 - Prob. 2PITCh. 7 - Prob. 3PITCh. 7 - Prob. 4PIT
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- What is dominant control mechanism of gene expression? explain the following image.arrow_forwardIn the gene in the fruit fly (Drosophila) called antennepedia. It controls the formation of which structures? What happens when it is mutated?arrow_forwardA person treated successfully by gene therapy will still have a defective copy of the gene. Explain why.arrow_forward
- The complex set of chemical markers and genetic switches that regulate gene function is called thearrow_forwardhow could deacetylation of proteins by sirtuins counteract the "information loss" seen in aging cells? a gene in a mammal with a promoter region that contains 5 CpGs per 100 nucleotides. What type of gene is thatarrow_forwardWhich of the following scenario will result in greater consequences in terms of gene expression? insertion or deletion of one nucleotide insertion or deletion of three nucleotides Explain why.arrow_forward
- How does gene expression influence the behavior of cells that contain the same genome (genetic information)? In other words, why do cells that belong to the same multicellular organism have a different structure and function?arrow_forwardMany aspects of gene function can be nicely explained with the one-gene-one-enzyme hypothesis, which states that a gene controls the production of an enzyme. Which of the following findings about gene expression, though, requires an expansion of this simple concept? Choose an answer below: Non-enzyme proteins are made from genes too. Some genes code for RNA molecules only. Enzymes composed of different polypeptides are coded for by more than one gene. a and c, but not b a, b, and carrow_forwardIn the novel Chromosome 6, by Robin Cook, a biotechnology company genetically engineers individual bonobos (a type of chimpanzee) to serve as future organ donors for clients. The genes of the bonobos are altered so that no tissue rejection takes place when their organs are transplanted into a client. What genes would need to be altered for this scenario to work? Explain your answer.arrow_forward
- "In most differentiated tissues, daughter cells retain a memory of gene expression patterns that were present in the parent cell through mechanisms that do not involve changes in the sequence of their genomic DNA" is true or false.arrow_forwardA researcher that uses mouse models to understand protein function in the immune system ,genetically engineered one of her mice to be missing a specific protein known as I TK.There is a special term to describe removal of gene function to study the role of the gene.This term is ………..?arrow_forwardWhich of the following is TRUE about eukaryotic gene expression? The same regulatory proteins are present in every cell of the body. Every cell in the body expresses different genes. Every cell in the body expresses the same genes. The same regulatory sequences are present in every cell of the body.arrow_forward
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