BIOLOGY (LL)
5th Edition
ISBN: 9781264115495
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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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
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https://www.denverzoo.org/animals/blind-cave-fish
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Chapter 15 Solutions
BIOLOGY (LL)
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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- 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
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