CAS BI 14919

subject Type Homework Help
subject Pages 5
subject Words 552
subject Authors Charlotte A. Spencer, Michael A. Palladino, Michael R. Cummings, William S. Klug

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page-pf1
Research dealing with which human blood disorder was instrumental in linking the
genotype to a specific phenotype, and what conclusion was reached?
Lysogeny is an important phenomenon in bacteria and phages. Briefly describe
lysogeny (using labeled diagrams if helpful).
In a mating between individuals with the genotypes IAi x ii, what percentage of the
offspring are expected to have the O blood type?
When cells withdraw from the continuous cell cycle and enter a "quiescent" phase, they
are said to be in what stage?
page-pf2
In what way do mitochondrial mutations influence phenotype?
Assume that one counted 67 plaques on a bacterial plate where 0.1 ml of a 10-5 dilution
of phage was added to bacterial culture. What is the initial concentration of the
undiluted phage?
Present an overview of prokaryotic regulation in terms of growth efficiency.
page-pf3
Two forms of hemophilia are determined by genes on the X chromosome in humans.
Assume that a phenotypically normal woman whose father had hemophilia is married to
a normal man. What is the probability that their first daughter will have hemophilia?
The 9:3:3:1 ratio is typical of a dihybrid cross in which complete dominance and
independent assortment occur. What is the dihybrid ratio with independent assortment
of polygenes?
A number of generalizations can be made about the organization of protein-coding
genes in bacterial chromosomes. First, the gene density is very high, averaging about
________.
page-pf4
In what way is 5"-azacytidine used (experimentally) in the treatment of sickle-cell
anemia?
Considering the Central Dogma of Molecular Genetics, what general property is
ascribed to DNA?
What does the variable 2pq represent?
Present an overview of the gene organization in large-genome plants.
page-pf5
List three general categories of genetic changes that lead to the formation of oncogenes.

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