CAMPBELL BIOLOGY IN FOCUS-TEXT,AP ED.
3rd Edition
ISBN: 9780136811206
Author: Urry
Publisher: SAVVAS L
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Chapter 18, Problem 6TYU
FOCUS ON EVOLUTION
Genes important in the embryonic development of animals, such as homeobox-containing genes, have been relatively well conserved during evolution; that is, they are more similar among different species than are many other genes. Explain why.
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Genes important in the embryonic development of animals, such as homeobox-containing genes, have been relatively well conserved during evolution; that is, they are more similar among different species than are many other genes. Explain why this is.
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Chapter 18 Solutions
CAMPBELL BIOLOGY IN FOCUS-TEXT,AP ED.
Ch. 18.1 - Prob. 1CCCh. 18.2 - Prob. 1CCCh. 18.2 - Explain the advantage of the systems biology...Ch. 18.2 - Prob. 3CCCh. 18.3 - The best estimate is that the human genome...Ch. 18.3 - Prob. 2CCCh. 18.3 - Prob. 3CCCh. 18.4 - Discuss the characteristics of mammalian genomes...Ch. 18.4 - Which of the three mechanisms described in Figures...Ch. 18.4 - Prob. 3CC
Ch. 18.5 - Describe three examples of errors in cellular...Ch. 18.5 - Prob. 2CCCh. 18.5 - Prob. 3CCCh. 18.6 - Would you expect the genome of the macaque (a...Ch. 18.6 - Prob. 2CCCh. 18 - Prob. 1TYUCh. 18 - Prob. 2TYUCh. 18 - Two eukaryotic proteins have one domain in common...Ch. 18 - DRAW IT Comparing amino acid sequences of similar...Ch. 18 - SCIENTIFIC INQUIRY The scientists mapping human...Ch. 18 - FOCUS ON EVOLUTION Genes important in the...Ch. 18 - FOCUS ON INFORMATION The continuity of life is...Ch. 18 - SYNTHESIZE YOUR KNOWLEDGE Insects have three...
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- When comparing evolutionary similarities between different genes within a gene family, it is usually more straightforward to compare genes by using the protein sequences of gene products rather than DNA sequences of the genes themselves. Explain why this is the case. (Cover 4 points)arrow_forwardGive typed full explanation there are about 28,000 copies of zinc finger domains in the human genome, most of them as constituents of transcribed genes. This is a result of what process? Retro transposition of mobile sequences Evolutionary conservation, exon duplication and exon shuffling Evolutionary conversion of leucine zipper, helix-turn-helix, and helix-loop-helix domains into zinc finger domains Evolutionary selection for proteins that interfere with nucleosome packing Genes that “jump” with the help of a transposase.arrow_forwardNeanderthal Hair Color The MCIR gene regulates pigmentation in humans (Sections 14.1 and 15.l revisited), .so loss-of-function mutations in this gene affect hair and .skin color. A person with two mutated alleles for this gene makes more of the reddish melanin than the brownish melanin, resulting in red hair and pa le skin. DNA extracted from two Neanderthal fossils contains a mutated MC1R allele that has not yet been found in humans, To see how the. Neanderthal mutation affects the function of the MC1R gene, Carles Lalueza-Fox and her team introduced the allele into cultured monkey cells (FIGURE 26.1 6). FIGURE 26.16 MC1R activity in monkey cells transgenic for an unmutated MClR gene, the Neanderthal MC1R allele or the gene for green fluorescent protein (GFP). GFP is- not related to MC1R. 2. What does this imply about the mutations effect on Neanderthal hair color?arrow_forward
- Neanderthal Hair Color The MCIR gene regulates pigmentation in humans (Sections 14.1 and 15.l revisited), .so loss-of-function mutations in this gene affect hair and .skin color. A person with two mutated alleles for this gene makes more of the reddish melanin than the brownish melanin, resulting in red hair and pa le skin. DNA extracted from two Neanderthal fossils contains a mutated MC1R allele that has not yet been found in humans, To see how the. Neanderthal mutation affects the function of the MC1R gene, Carles Lalueza-Fox and her team introduced the allele into cultured monkey cells (FIGURE 26.1 6). FIGURE 26.16 MC1R activity in monkey cells transgenic for an unmutated MClR gene, the Neanderthal MC1R allele or the gene for green fluorescent protein (GFP). GFP is- not related to MC1R. What purpose do the cells with the gene for green fluorescent protein serve in this experiment?arrow_forwardGTTTTCACTGGCGAGCGTCATCTTCCTACT 7. Are there homologs for the identified gene in other systems? Identify one homolog in an invertebrate system (if there is none, provide a vertebratehomolog). 10. Generate a secondary structure prediction for one identified protein.arrow_forwardAssumptions: -There are approximately 3,000,000,000 base paris in the mammalian genome (genes constitute only a portion only a portion of this total. -There are approximately 10,000 genes in the mammalian genome. - A single gene averages 10,000 base pairs in size. -Only 1 out of 3 mutation that occur in gene result in a chnage to the protein structure. In the mammalian genome: How many total base-pairs are in all the mammalian genes? what proportion (%) of the total genome does this represent? What is the probability that a random mutation will occur in any given gene? What is the probability mutation will change the structure of a protein?arrow_forward
- Human Biology- MILESTONE 6 X P genetics-and-biotechnology-glo O https://app.sophia.org/spcc/human-biology-2-mile -> Sophia Pathways M Gmail Purdue Global - Sig... Welcome - Login.gov UNIT 6 – MILESTONE 6 Which of the following is a gene abnormality in which two nonhomologous parts rearrange and fuse together? O Translocation O Deletion None of these, O Duplication SAVE & CONTINUE Report an issue with this question Type here to searcharrow_forwardGreat! Now you have the gene sequence. Now you would like to clone it into an expression vector to grow up in a bacterial system. Because you're going to use bacteria to generate protein from a eukaryote, the mammoth, you need to get rid of introns from your sequence. How do you do that? O Bioinformatically, I look for splice-site sequences and branch-point adenines and predict intron-exon boundaries O l use a comparative genomic approach and use sequence homology with the genome of a closely related species O luse a comparative genomic approach and use sequence homology with the genome of a distantly related species O Both A and B O Both B and Carrow_forwardAaBbCc x AaBbcc How would you characterize this kind of relationship between the genes: A-B- (gray); A-bb (yellow); aaB- (black); aabb (cream) The CC and Cc genotypes allow color according to the expression of the A and B alleles. However, the cc genotype results in albino rats regardless of the A and B alleles presentarrow_forward
- 6 of 22 All cells in a given mammal carry the same genome, yet certain genes are expressed only in a particular tissue, such as in the eye, and not expressed in other tissues, such as in the liver. How is this specificity of gene expression for a particular tissue achieved? O All different cell types in the organism express all proteins equally and degrade the proteins that they don't need. O Different tissues express unique transcription factors that are bound to tissue-specific enhancer elements, thereby achieving tissue-specific gene expression. O Certain organ and tissue systems, such as the nervous system, form relatively early in the organism's embryonic life, as compared to the epidermis; it is this relative age of the tissue lineage that determines which tissue- specific genes are expressed. O Different tissues inactivate whole swaths of the genome, thereby achieving tissue-specific gene expression. O Each tissue has a unique RNA polymerase holoenzyme that achieves…arrow_forward. Complete genome sequences indicate that the humangenome has roughly 27,000 genes, while the worm(nematode) genome has about 22,000 genes. Explainhow the human genome with only about 20% moregenes can encode a creature enormously more complex than the worm.arrow_forward8. Two independent genes are located near each other on the genome of the mouse. Whiskers is required for formation of whiskers, fur is required for fur formation, assume mutations in these genes are recessive (le require a homozygous to be no-fur, no whiskers) Non-coding region Non-coding region Non-coding region whiskers F fur A B D E F a) If you insert an extra nucleotide at position B, what will be the phenotype of an animal homozygous for this mutation? (circle one for each: Fur/no fur whiskers/no whiskers ) b) If you insert a nucleotide at position C, what will be the homozygous phenotype? (circle one for each: Fur/no fur whiskers/no whiskers ) c) If you insert a nucleotide at position E, what will be the homozygous phenotype? (circle one for each: Fur/no fur whiskers/no whiskers) d) If you insert a nucleotide at position B, and take one away from position C, what will be the homozygous phenotype? (circle one for each: Fur/no fur whiskers/no whiskers) e) If you insert a…arrow_forward
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