Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
11th Edition
ISBN: 9781488687075
Author: Lisa, A. Urry
Publisher: PEARSON
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Chapter 47, Problem 47.3CR
Suppose you found two classes of mouse mutations, one that .affected limb development only and one that affected both limb and kidney development. Which class would be more likely to alter the function of monocilia? Explain.
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Suppose you found two classes of mouse mutations, one that affectedlimb development only and one that affected both limb and kidneydevelopment. Which class would be more likely to alter the functionof monocilia? Explain.
You are studying a mutation in mice, which acts dominantly. Mice that have only one copy of the allele carrying this mutation have a kinky tail phenotype. You identify the gene that the mutation affects and find that the codon that encodes the second amino acid in the predicted protein has been mutated to a stop codon. Would you characterize this mutation as a loss-of-function or a gain-of-function and what specific subtype (hypermorphic, antimorphic, etc. ) within these categories? Explain your reasoning.”
given a situation in which you manipulated a zebrafish embryo by injecting high levels of retinoic acid so that no anterior genes will be expressed. Surprisingly, after embryonic development, you are still able to observed the presence of anterior structures. What could explain this observation? What changes in your experiment would you make to achieve your objective?
Chapter 47 Solutions
Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
Ch. 47.1 - How does the fertilization envelope form in sea...Ch. 47.1 - Prob. 2CCCh. 47.1 - MAKE CONNECTIONS Review Figure 12.16 on cell...Ch. 47.2 - In the frog embryo, convergent extension elongates...Ch. 47.2 - WHAT IF? Predict what would happen if Ca2+ was...Ch. 47.2 - MAKE CONNECTIONS Unlike some other types of birth...Ch. 47.3 - Prob. 1CCCh. 47.3 - Prob. 2CCCh. 47.3 - Prob. 3CCCh. 47.3 - Prob. 4CC
Ch. 47 - What cell-surface event would likely fail if a...Ch. 47 - What are some functions of apoptosis in...Ch. 47 - Suppose you found two classes of mouse mutations,...Ch. 47 - Prob. 1TYUCh. 47 - Which of the following is common to the...Ch. 47 - The archenteron develops into a. the mesoderm. b....Ch. 47 - What structural adaptation in chickens allows them...Ch. 47 - Prob. 5TYUCh. 47 - In humans, identical twins are possible because a....Ch. 47 - Cells transplanted from the neural tube of a frog...Ch. 47 - DRAW IT Each blue circle in the figure below...Ch. 47 - EVOLUTION CONNECTION Evolution in insects and...Ch. 47 - Prob. 10TYUCh. 47 - Prob. 11TYUCh. 47 - Prob. 12TYUCh. 47 - SYNTHESIZE YOUR KNOWLEDGE Occasionally, two-headed...
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- Proteins A,B,C, and D in the diagram are encoded by different genes and interact with each other. Imagine that a mutation in the gene for protein A changes one of the charged amino acid in the red circle area from positive to negative charge (blue arrow). this mutation results in a mutant phenotype. Assume a mutation in the gene for protein B occurs and the double mutants have a phenotype that is almost wild type. How would you best describe the mutation in gene B? Protein C Proten A Protein B Protein B Wild type Mutation in the gene for protein Aarrow_forwardGiven the following schematic for a gene and its associated regulatory regions, answer the following questions by placing the correct letter in the provided blanks please put in the correct letter for the questions What region would provide cell type-specific expression of genes? region What site would significantly increase gene expression rates? = region What region or regions of this gene’s coding sequence are expressed as amino acids = regionarrow_forwardThe figure below represents a cell undergoing gene expression. Use the figure to answer the questions that follow (a - e). a. What is indicated by label (2) in the figure above? b. What is indicated by label (3) in the figure above? c. What happens to the part labelled (3) and what complex makes it happen? d. Which amino acid is represented by (6)? e. Give the one anticodon in the 5' to 3' direction that will recognize all the codons for this amino acid in (c)arrow_forward
- The homeotic mutation Antennapedia causes mutant Drosophila to have legs in place of antennae and is a dominant gain-of-function mutation. List all the properties of such mutations. How does the Antennapedia gene change antennae into legs?arrow_forwardYou are interested in the effects of mutations on the expression of a human protein- encoding gene expressed in skin cells. The gene has one intron that is 450 nucleotides long. After this intron is removed from the pre-mRNA, the mRNA transcript is 1100 nucleotides in length. Diploid somatic cells have two copies of this gene. Predict the size and amount of mRNA from the cytosol of skin cells, which were obtained from the following individuals: • Individual 1: Normal individual with no mutations in this gene. • Individual 2: Homozygous for a deletion that removes the -10 to -100 region of the gene that encodes this mRNA. • Individual 3: Heterozygous in which one gene is normal and the other gene has a deletion that removes the -10 to -100 region. • Individual 4: Homozygous for a five-nucleotide deletion in the intron that removes the GT sequence at the 5' splice site. Explain your answers.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_forward
- Many 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? 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_forwardFigure shows a part of the sequence alignment of human and whale myoglobin proteins. Please explain the difference between green- and yellow-colored mutations. Which mutations have higher probability to change the function of protein, why?arrow_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
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Mitochondrial mutations; Author: Useful Genetics;https://www.youtube.com/watch?v=GvgXe-3RJeU;License: CC-BY