Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 15.2, Problem 1CC
Summary Introduction
To determine: The reason behind the harmful nature of thymine dimer.
Introduction: The structure of DNA is made from the multiple monomer units of nucleotides. A
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Genetics of man question:Describe the molecular genetics analysis for the GATA binding protein gene and consider the possibility of lethality and functional
redundancy and experimental strategies to address possibilities.
Based on standard MS- LS3-1:
Fish in a cave system in Mexico is missing its eyes, has thin, translucent skin, and is relatively small (7-10 cm in length).
Can you describe by model why structural changes to genes (mutations) on chromosomes may affect proteins and may result in beneficial effects to the structure and function of the fish?
Can you answer in the following format?
1-
Structure
How Structure and Function is Affected by Mutations in Blind Fish
Eyes
Scales
Taste Cells
Lateral Line
2- Model to explain what causes these changes:
Change: ______________ Adapting an Organism to the Dark
Cause: ________________ Stop the Growth of Eyes
Effect: ___________________ Fish with Heightened Other Senses
References:
Video: Rare Blind Cave Fish in Mexican Cave System
https://www.youtube.com/watch?v=MWdtGuDd8z0
Fact Sheet: Blind Cave Fish
https://www.denverzoo.org/animals/blind-cave-fish
Information: Mexican Tetra…
Genetics of man question:Provide the expression pattern of the gene ,GATA binding 3 (GATA3).
Chapter 15 Solutions
Biology
Ch. 15.1 - Consequences of Mutations Concept Check: Based on...Ch. 15.1 - Prob. 2CCCh. 15.2 - Prob. 1EQCh. 15.2 - Prob. 2EQCh. 15.2 - Prob. 3EQCh. 15.2 - Prob. 1CCCh. 15.3 - DNA Repair Concept Check: Which components of the...Ch. 15.3 - Why is this person so sensitive to sunlight?...Ch. 15.4 - Prob. 1CCCh. 15.4 - Prob. 2CS
Ch. 15.4 - Prob. 2CCCh. 15.4 - Prob. 3CCCh. 15.4 - Prob. 4CCCh. 15 - Prob. 1TYCh. 15 - Prob. 2TYCh. 15 - Prob. 3TYCh. 15 - Prob. 4TYCh. 15 - Prob. 5TYCh. 15 - The Ames test a. provides a way to determine if...Ch. 15 - Xeroderma pigmentosum a. is a genetic disorder...Ch. 15 - Prob. 8TYCh. 15 - Prob. 9TYCh. 15 - Prob. 10TYCh. 15 - Prob. 1CQCh. 15 - Prob. 2CQCh. 15 - Prob. 3CQCh. 15 - Prob. 1COQCh. 15 - Distinguish between spontaneous and induced...
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- Question: Explain how epigenetic marks and genomic imprinting are related. Provide a drawing to illustrate your point.arrow_forwardSuggest a reasonable strategy for the specific phosphorylation of the5’ –OH group of a nucleoside.arrow_forwardWhat is the possible consequence(s) of a Q188R mutation for the function of the protein? Keeping Galactosemia in mind for the answer.arrow_forward
- Genetics of man question: Provide a brief description of on the SNP for the gene GATA binding protein 3 (GATA3)and as well as the gene .arrow_forwardQuestion : Give an alternative form of CpG methylation, given clear handwritten explaination!arrow_forwardVARIATIONS IN GENE EXPRESSION In humans, the glucose-6-phosphate dehydrogenase (G6PD) gene involved in sugar metabolism is X-linked. The dominant allele (G) codes for fast enzymes for normal cell functioning while the recessive allele (g) codes for slow enzymes, which are responsible for the reduced enzymatic activity of cells. However, the presence of slow enzymes has minimal effect in the overall functioning of heterozygotes, thus normal. Recessives, however, are more prone to oxidative reactions that speed up the cell damaging process, thus weak (but not lethal). If random inactivation occurs during dosage compensation, what would be the genotypes and phenotypes of the children of a heterozygous mother and a recessive father? Show COMPLETE cross.arrow_forward
- Variations in Gene Expression In humans, the glucose-6-phosphate dehydrogenase (G6PD) gene involved in sugar metabolism is X-linked. The dominant allele (G) codes for fast enzymes for normal cell functioning while the recessive allele (g) codes for slow enzymes, which are responsible for the reduced enzymatic activity of cells. However, the presence of slow enzymes has minimal effect in the overall functioning of heterozygotes, thus normal. Recessives, however, are more prone to oxidative reactions that speed up the cell damaging process, thus weak (but not lethal). If random inactivation occurs during dosage compensation, what would be the genotypes and phenotypes of the children of a heterozygous mother and a recessive father? with COMPLETE crossarrow_forward- 1 attachment If a pure line wheat plant with a colored kernel (geniotype = DDEE) is crossed to plant with white kernels (genotype = ddee) and the resulting. F1 plants are selfed, a modification of the dihybrid 9:3:3:1 ratio will be produced. What is the biochemical explanation for the genotypes: (a) D_E_ and (b) D_ee ? A. Presence of functional enzymes from both genotypes (a) and (b) B. Presence of functional enzymes from genes in (a) C. Absence of a functional enzyme from the D gene pair D. Presence of functional enzymes from genes in (a) and absence of a functional enzyme from the D gene pair in (b) E. None of the above.arrow_forwardGTTTTCACTGGCGAGCGTCATCTTCCTACT 8. What is the function (e.g. transcriptional regulation, transmembrane signaling, kinase, protease, etc.) of the protein(s) encoded by the gene.arrow_forward
- The flower color of genetically identical hemp plants (clones) is purple when the flowers develop under cold environment (30 °C). Describe in detail a molecular mechanism that could explain how these two groups of genetically identical plants differ in their gene expressions to produce different flower colors?arrow_forward. Explain why DNA is stable in the presence of alkali (0.3 M KOH), while RNA is quantitatively degraded to 2'- and 3'-nucleoside monophosphates under these conditions.arrow_forwardWhich statements are true? Explain why or why not.1 The consequences of errors in transcription areless severe than those of errors in DNA replication.2 Since introns are largely genetic “junk,” they do nothave to be removed precisely from the primary transcriptduring RNA splicing.3 Wobble pairing occurs between the first positionin the codon and the third position in the anticodon.4 During protein synthesis, the thermodynamics ofbase-pairing between tRNAs and mRNAs sets the upperlimit for the accuracy with which protein molecules aremade.5 Protein enzymes are thought to greatly outnum-ber ribozymes in modern cells because they can catalyzea much greater variety of reactions and all of them havefaster rates than any ribozyme.arrow_forward
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