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Q1. Yellow guinea pigs (Y) crossed with white (Y') guinea pigs always produce cream colored offspring. What kind of inheritance is operating here? If you crossed two cream guinea pigs, what is the possibility of yellow offspring? Of white offspring? Of cream offspring?
Q2. While Mexican hairless dogs are crossed with normally haired dogs, about half the pups are hairless and half have hair. While, though, two Mexican hairless dogs are mated, about a third of the pups produced hair, about two thirds are hairless and some deformed puppies are born dead. Explain the results.
What are the roles of the cell surface, the cytoskeleton and intercellular signaling in development? Include examples from gastrulation, induction, morphogenesis and axis formation.
If the stock arabinose solution is 200 mg/ml, how much of the stock solution should be added to 10 ml of LB/amp agar for a concentration of 2 mg/ml arabinose?
How is the gene for β-galactosidase used in the construction of a plasmid?
What neurotransmitter is released by motor neurons to cause skeletal muscle contraction? How does this neurotransmitter cause contraction?
If normal cells were isolated many years ago and have been maintained in the lab through subculturing, would you expect this cell line now to be normal or transformed? why?
What biological structure does the winding stairs in Jerome's apartment resemble and what components are represented by the "rails"?
In hamsters, black coat color (B) is dominant to white coatcolor (b). A homozygous black hamster is mated with aheterozygous black hamster. What will be the possiblegenotypes and phenotypes of their offspring?
Assume you are trying to create a rose bush that has deep red roses and small thorns. Rose color is determined through the R gene.
Describe the etiologies, pathophysiology, and manifestations associated with the inflammatory diseases of the heart: rheumatic heart disease, endocarditis, myocarditis, and pericarditis.
Why there are multiple origins of replication on eukaryotic DNA? a. To establish multiple copies of DNA simultaneously. b None of these is correct. c. To minimize errors in DNA replication. d. To reduce the time necessary for DNA replication
One of the most interesting concepts in animal evolution is the relationship between the phylum Echinoderms and the phylum Chordates. Humans belong to the phylum Chordata.
Which of the substrates is in the oxidized form?
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