MODIFIED MASTERING BIOLOGY WITH PEARSO
11th Edition
ISBN: 9780134447292
Author: Urry
Publisher: PEARSON EDUCATION (COLLEGE)
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Chapter 18.3, Problem 3CC
MAKE CONNECTIONS Ø Inactivation of one of the X chromosomes in female mammals involves IncRNA called XIST RNA. mentioned in this section and in Concept 15.2. Describe transcription and binding of XIST RNA, then suggest a model for how it initiates Barr body formation.
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Chapter 18 Solutions
MODIFIED MASTERING BIOLOGY WITH PEARSO
Ch. 18.1 - How does binding of the trp corepressor to the trp...Ch. 18.1 - Describe the binding of RNA Polymerase,...Ch. 18.1 - WHAT IF? A certain mutation in E. coli changes...Ch. 18.2 - In general, what are the effects of histone...Ch. 18.2 - MAKE CONNECTIONS Speculate about whether the same...Ch. 18.2 - Compare the roles of general and specific...Ch. 18.2 - Once mRNA encoding a particular protein reaches...Ch. 18.2 - WHAT IF? Suppose you compared the nucleotide...Ch. 18.3 - Compare miRNAs and siRNAs, including their...Ch. 18.3 - WH AT IF? Suppose the mRNA being degraded in...
Ch. 18.3 - MAKE CONNECTIONS Inactivation of one of the X...Ch. 18.4 - MAKE CONNECTIONS As you learned in Chapter 12,...Ch. 18.4 - MAKE CONNECTIONS Explain how the signaling...Ch. 18.4 - How do fruit fly maternal effect genes determine...Ch. 18.4 - Prob. 4CCCh. 18.5 - Prob. 1CCCh. 18.5 - Under what circumstances is cancer considered to...Ch. 18.5 - MAKE CONNECTIONS The p53 protein can activate...Ch. 18 - Compare and contrast the roles of a corepressor...Ch. 18 - Describe what must happen in a cell for a gene...Ch. 18 - Why are miRNAs called noncoding RNAs? Explsin how...Ch. 18 - Describe the two main processes that cause...Ch. 18 - Compare the usual functions of proteins encoded by...Ch. 18 - If a particular operon encodes enzymes for making...Ch. 18 - Muscle cells differ from nerve cells mainly...Ch. 18 - The functioning of enhancers is an example of (A)...Ch. 18 - Cell differentiation always involves (A)...Ch. 18 - Which of the following is an example of...Ch. 18 - What would occur if the repressor of an inducible...Ch. 18 - Absence of bicoid in mRNA from a Drosophila egg...Ch. 18 - Which of the following statements about the DNA in...Ch. 18 - Within a cell, the amount of protein made using a...Ch. 18 - Prob. 10TYUCh. 18 - draw it The diagram below shows five genes,...Ch. 18 - Prob. 12TYUCh. 18 - Prob. 13TYUCh. 18 - SCIENCE. TECHNOLOGY, AND SOCIETY Trace amounts of...Ch. 18 - WRITE ABOUT A THEME: INTERACTIONS In a Short essay...Ch. 18 - SYNTHESIZE YOUR KNOWLEDGE The flashlight fish has...
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- Which of the following statements is incorrect? a. Some gene expression patterns can be passed to an individual's offspring. b. Expression of a master regulator triggers a gene express.ion cascade. c. X chromosome inactivation is necessary for normal development of male mammals.arrow_forwardMAKE CONNECTIONS Review Figure 12.16 on cell cyclecontrol. Would you expect MPF (maturation-promotingfactor) activity to remain steady during cleavage? Explain.arrow_forwardDiscuss Concepts The genome of the yeast Saccharomyces cerevisiae is only about 0.4% the size of the human genome, yet itcontains about 30% as many genes as are in the human genome. Given that, which of the features of the human genome would you expect to find many fewer of in the yeast genome?arrow_forward
- Essay: Relate the structure of the DNA to its role as a molecule for inheritance. Elaborate on the significance of DNA Describe the molecular mechanisms involved in P53’srole as a tumor repressor protein packaging in the inheritance and transmission of traits.arrow_forward4) Explain why you can NOT typically have a Male Calico cat. 5) Can you think of any unusual situation where you might be able to have a Male Calico cat? Explain how this might occur 6) Explain how X chromosome inactivation takes place in mammals at the chromosomal and molecular level. B. What genes are involved in inactivating a human X chromosome? C. What role does X chromosome-specific inactivating transcript --XIST-- non coding RNA play in the inactivation of the human X chromosome.arrow_forward7) CRSPR-cas9 has revolutionized are ability to edit genomes. How has the CRSPR-cas9 system increased the efficiency of introducing mutations to mammalian genomes?arrow_forward
- Hi, can you elaborate about the following: certain characterize mutations in p63 and compare that to known mutations in p53.arrow_forwardTo determine the effect of the bicoid gene, scientists injected bicoid mRNA into the posterior end of freshly laid fruit fly eggs. What effect would you expect such an injection to have on the flies development?arrow_forwardDiscuss Concepts Why do you suppose cells evolved internal response mechanisms using molecules that bind GTP instead of ATP?arrow_forward
- Q1. Predict the effects (on translation of coat gene and replicase gene) of the following mutations on phage R17 coat gene and replicase gene translation and explain the logic of your answers: a. An amber mutation (premature stop codon) six codons downstream of the coat gene initiation codon. b. Mutations in the stem loop around the coat gene initiation codon that weakens the base-pairing in the stem loop. c. Mutations in the interior of the replicase gene that cause it to base-pair with the coat gene initiation codon.arrow_forwardCarbon Copy (CC), the first cat produced from aclone, was created from an ovarian cell taken from hergenetic donor, Rainbow, a calico cat. The diploid nucleusfrom the cell was extracted and then injected into an enucleatedegg. The resulting zygote was then allowed to developin a petri dish, and the cloned embryo was implanted inthe uterus of a surrogate mother cat, who gave birth to CC.CC’s surrogate mother was a tabby (see the photo below).Geneticists were very interested in the outcome of cloninga calico cat because they were not certain if the cloned catwould have patches of orange and black, just orange, orjust black. Taking into account the Lyon hypothesis, explainthe basis of the uncertainty. Would you expect CC to appearidentical to Rainbow? Explain why or why not.arrow_forward2.How does Aceto-Orcein interact with the chromosome? Give detailed information.arrow_forward
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