Gene Regulation
The trp operon is a _______ operon that is normally on.
Repressible
Georges Cuvier was the father of the this theory based on observations of sedimentary rock.
Catastrophism
This term describes individuals of the same species that interbreed and live in the same place at the same time.
Population
The slow erosion that led to the Grand Canyon can be explained by the theory of _________.
Gradualism
T or F? Crossing over occurs during Prophase I of mitosis.
False. Prophase I of meiosis.
This activator protein binds to the lac operon promoter, and is the mechanism for positive control of the gene.
Catabolite Activator Protein (CAP)
The radius and ulna represent this type of characteristic between related species.
Homologous structures
This type of selection favors both of the extreme phenotypes.
Disruptive selection
These protein/DNA structures constitute the "beads" in the 10nm fiber level of DNA packing.
Nucleosomes
These long repeating strands of TTAGGG on the ends of chromosomes delay the erosion of DNA.
Telomeres
Name the six locations of gene regulation in eukaryotes.
1. Chromatin modification
2. Transcription
3. RNA processing
4. mRNA degradation
5. Translation
6. Protein processing
Who developed a theory of evolution nearly identical to Charles Darwin, but conceded due to lack of supporting evidence.
Alfred Russell Wallace
Allele frequency for a disease is twice as high in a population that formed as a result of a few emigrating individuals. This is an example of what?
Founder effect
Transcription will increase
pH in the mitochondrial intermembrane space is (higher/lower) than in the matrix.
Lower
Different _______available in the nucleus allow for controlled gene expression on the same strand of DNA in different cell types.
Activators
Using the knowledge that mountains rise an inch a year to estimate the height of a mountain 10,000 years ago, would be an application of what theory?
Uniformitarianism
Allele frequency in a population of trees has changed due to a massive flood. This change in allele frequency is due to ________.
Bottleneck effect.
These genes can be mutated to become cancer-causing genes.
Proto-oncogenes
These highly-branched chains of glucose are an important form of energy storage in mammals.
What will happen to a cell with mutations that cause both hyperactive Ras protein and defective RTK (receptor tyrosine kinase) cell surface receptors upon release of growth hormone?
The cell will not grow due to the inactive RTK receptors.
The wings of bats and insects perform the same function but arose independently. These structures are _______ and arose through ________ evolution.
Analogous; Convergent
Assuming that the allele frequency for a dominant allele is 0.5, what is the ratio of dominant phenotype to recessive phenotype in a population at Hardy-Weinberg equilibrium?
3:1
An individual on a very low carb diet ingests a large amount of dairy. How will the lac operon be affected?
A mutated cell is unable to depolymerize microtubules. What stage of mitosis will be most affected?
Anaphase