Example: Beyonce has brown eyes. Her eyes look brown because her DNA codes for a brownpigment in the cells of her eyes. This is the gene that codes for brown eyes.DNAТАC GCG ТАТ АСС GАС АMRNAAUG CG CAUA UGG CUG UAADirections: Now try these examples: First transcribe the DNA into mRNA1. Transcribe gene into mRNA moleculeATA CGA AAT CGC GAT CGC GGC TCGDNAMRNA2. Transcribe gene into mRNA moleculeDNAGTA CGC GTA TΤΑ CCT CAT TTA ΑTGMRNA3. Make a Prediction: Why would an organism waste energy to make a copy ofthe gene with the mRNA molecule? In other words, why doesn't the body justsend the original DNA molecule out to make the protein?

Answered: Example: Beyonce has brown eyes. Her…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Example: Beyonce has brown eyes. Her eyes look brown because her DNA codes for a brown
pigment in the cells of her eyes. This is the gene that codes for brown eyes.
DNA
ТАC GCG ТАТ АСС GАС А
MRNA
AUG CG CAUA UGG CUG UAA
Directions: Now try these examples: First transcribe the DNA into mRNA
1. Transcribe gene into mRNA molecule
ATA CGA AAT CGC GAT CGC GGC TCG
DNA
MRNA
2. Transcribe gene into mRNA molecule
DNA
GTA CGC GTA TΤΑ CCT CAT TTA ΑTG
MRNA
3. Make a Prediction: Why would an organism waste energy to make a copy of
the gene with the mRNA molecule? In other words, why doesn't the body just
send the original DNA molecule out to make the protein?

Expert Solution

Introduction

The central dogma of molecular biology illustrates the flow of genetic information in a cell. The genetic information is stored in DNA, which gets converted to a mRNA intermediate, that carries this information to the ribosomal machinery to produce functional proteins. Thus, the flow of genetic information occurs from DNA --> RNA --> Proteins.

The various traits observed in individuals are controlled by genes with one gene controlling one or more traits. Each gene can have one or more alleles or variants. The dominance and recessiveness of the alleles combined with environmental factors determine the final physical observable trait (phenotype).

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