Describe how genetic mutations lead to genetic variation and allele interactions. How do gene mutations contribute to evolution? a) Unfavorable mutations have a more significant effect on genes than favorable mutations, so they are spread through the population. b) Beneficial mutations...
How does heredity contribute to variation? Explain the role of the environment in the phenotypic range of some genes. What disease is caused by chromosomal mutations? When does the mutation occur? What chromosomes are affected? What are the consequences? 2. Diagram what w...
Define epigenetics, describe how it affects gene regulation and how it is related to the onset of disease/disorders. How is it different than DNA mutations? Explain two examples of epigenetic mechanisms and their effects on gene regulation. What is comparative genomics? How do...
How did this happen? • Selection pressure applied • S. aureus acquired and mutated a gene from another species of Staphylococcus (S. sciuri) –the penicillinase gene (via a plasmid) –then the methicillin resistance gene mec Mec: • Originated in S. scuiri another species of St...
He had so many questions and so many ideas about what all can happen by genetic engineering, and they were all very valid questions and ideas. I was thoroughly impressed. Our topics of discussion spanned mutations, viral diseases, cancers, why it is difficult to find c...
What would happen to a cell that had a mutation that caused all of the ribosomes to stop functioning? Why? Be sure to thoroughly explain your answer. Describe the chromatin structure. How can it affect gene expression? Describe how eukaryotic DNA is arranged...
How do mutations in a proto-oncogene and a tumor suppressor gene affect the cell cycle? What is the result? Explain what frameshift and nonsense mutations are and identify any other types of mutations. If a gene was changed by "mutation," then wha...
Explain how allopatric and sympatric speciation might work, and give an hypothetical example of each. What is the process of speciation? Define Speciation. 1. Why do genetic mutations happen? 2. What factors do they depend on? What does microevolution typically refer to? a. Patterns that are ...
When one gene alters the expression of another gene what will happen? (a) What are R-genes? (b) How do they work? Describe the impact of lateral gene transfer on bacterial genome evolution.
Answer to: Explain how natural selection works and describe how it tightly intertwines structure and function together as inseparable entities. By...