Biology and Genetics
101624 questions • Page 1834 / 2033
You have discovered a new gene that encodes an unusual regulatory subunit of PKA
You have discovered a new gene that encodes an unusual regulatory subunit of PKA, which you name Ro. As with the R2C2 version of PKA, Ro forms a dimer and interacts with two molec…
You have discovered a new gene “X” that appears to be regulated by 3 transcripti
You have discovered a new gene “X” that appears to be regulated by 3 transcription factors (E2F, SP-1 and C/EBPa). Another gene “Y” appears to also be regulated by these same prot…
You have discovered a new gene “X” that appears to be regulated by 3 transcripti
You have discovered a new gene “X” that appears to be regulated by 3 transcription factors (E2F, SP-1 and C/EBPa). Another gene “Y” appears to also be regulated by these same prot…
You have discovered a new neurotransmitter used by taste-bud sensory cells. You
You have discovered a new neurotransmitter used by taste-bud sensory cells. You clone the cDNA of this gene, you express and purify its protein and you make monoclonal antibodies …
You have discovered a new orange body color gene on the X chromosome of Drosophi
You have discovered a new orange body color gene on the X chromosome of Drosophila similar to the gene that confers orange coat color in cats. You know that X chromosome inactivat…
You have discovered a new organism with a very simple actin cytoskeleton. In the
You have discovered a new organism with a very simple actin cytoskeleton. In the resting state this cell has a lot of short actin filaments underneath the plasma membrane. These a…
You have discovered a new species of worms for which the haploid number is three
You have discovered a new species of worms for which the haploid number is three. You isolated a dumpy worm and want to determine the linkage group of the gene dpy-1. The dpy-1 mu…
You have discovered a new species of worms for which the haploid number is three
You have discovered a new species of worms for which the haploid number is three. You isolated a dumpy worm and want to determine the linkage group of the gene dpy-1. The dpy-1 mu…
You have discovered a novel protein that has a pI=5.5. To study the functional p
You have discovered a novel protein that has a pI=5.5. To study the functional properties of this new protein, your research group has made a mutant that contains two amino acid c…
You have discovered a novel, negatively charged protein that binds strongly to t
You have discovered a novel, negatively charged protein that binds strongly to the positive charges on the amino-terminal tails of histone proteins. You have conducted an experime…
You have discovered a novel, negatively charged protein that binds strongly to t
You have discovered a novel, negatively charged protein that binds strongly to the positive charges on the amino-terminal tails of histone proteins. You have conducted an experime…
You have discovered a novel, negatively charged protein that binds strongly to t
You have discovered a novel, negatively charged protein that binds strongly to the positive charges on the amino-terminal tails of histone proteins. You have conducted an experime…
You have discovered a protein that inhibits translation. When you add this inhib
You have discovered a protein that inhibits translation. When you add this inhibitor to a mixture capable of translating human mRNA and centrifuge the mixture to separate polyribo…
You have discovered a protein that performs an interesting function. After purif
You have discovered a protein that performs an interesting function. After purifying the protein and performing "Edman degradation," you have determined that the following sequenc…
You have discovered a strain of E. coli that grows very slowly-the generation ti
You have discovered a strain of E. coli that grows very slowly-the generation time is nearly 12 hours compared to the normal 20-30 minutes. Upon further investigation, you find a …
You have discovered a toad living in the subarctic near Churchill, Manitoba. As
You have discovered a toad living in the subarctic near Churchill, Manitoba. As a research assistant you propose a study to characterize the winter acclimatization response. Selec…
You have discovered an E. coli plasmid that confers resistance to the antibiotic
You have discovered an E. coli plasmid that confers resistance to the antibiotic ampicilin so bacteria that contain the plasmid are able to grow in the presence of ampicilin. You …
You have discovered an E. coli plasmid that confers resistance to the antibiotic
You have discovered an E. coli plasmid that confers resistance to the antibiotic ampicilin - so bacteria that contain the plasmid are able to grow in the presence of ampicilin. Yo…
You have discovered an E. coli plasmid that confers resistance to the antibiotic
You have discovered an E. coli plasmid that confers resistance to the antibiotic ampicillin- so bacteria that contain the plasmid are able to grow in the presence of ampicillin. Y…
You have discovered an in a bacterium that is only turned on when sucrose is pre
You have discovered an in a bacterium that is only turned on when sucrose is present and glucose is absent. You have also isolated three mutants which have changes in the upstream…
You have discovered an interesting new leaf color variant in pea plants. You hav
You have discovered an interesting new leaf color variant in pea plants. You have some wild-type plants with the typical green leaf color and some plants with all yellow leaves. Y…
You have discovered several mutant strains of E. coli. Each mutant exhibits a de
You have discovered several mutant strains of E. coli. Each mutant exhibits a defect in DNA replication:the defects arc listed below. For each defect list the enzyme and/or enzyme…
You have discovered that a single co-dominant gene controls the date when monarc
You have discovered that a single co-dominant gene controls the date when monarch butterflies break diapause (=become reproductively active) in Mexico. You were extremely busy thi…
You have discovered that the RNA transcribed from Gene X in maize is required fo
You have discovered that the RNA transcribed from Gene X in maize is required for the regulation of Gene Y. The RNA of Gene X is not translated into proteins. However, in its abse…
You have discovered two different mutations of gene OMG1, mutation 1 and mutatio
You have discovered two different mutations of gene OMG1, mutation 1 and mutation 2. C. In mutation 1, there is an insertion of the following three base pairs immediately after th…
You have embarked upon an endeavor to breed trophy Elk with large antlers and ar
You have embarked upon an endeavor to breed trophy Elk with large antlers and are maintaining a herd of 200 elk. The sex ratio in the census population (Nc) is 50:50 but elk are h…
You have engineered a fusion protein composed of a cis Golgi resident protein an
You have engineered a fusion protein composed of a cis Golgi resident protein and the green fluorescent protein. Similarly, you have made a fusion protein composed of a trans Golg…
You have engineered a fusion protein composed of a cis Golgi resident protein an
You have engineered a fusion protein composed of a cis Golgi resident protein and the green fluorescent protein. Similarly, you have made a fusion protein composed of a trans Golg…
You have engineered a fusion protein composed of a cis Golgi resident protein an
You have engineered a fusion protein composed of a cis Golgi resident protein and the green fluorescent protein. Similarly, you have made a fusion protein composed of a trans Golg…
You have engineered a gene where you add multiple targeting sequences into the p
You have engineered a gene where you add multiple targeting sequences into the polypeptide sequence. Specifically, you add a ER import targeting sequence at the N-terminus and a n…
You have engineered the X chromosome in female mice such that one X chromosome e
You have engineered the X chromosome in female mice such that one X chromosome expresses green fluorescent protein when active, while the other expresses red fluorescent protein. …
You have extracted DNA from various food sources (shown in column 3 of the table
You have extracted DNA from various food sources (shown in column 3 of the table at the top of the next page) and set up the following PCR reactions, where the universal plant pri…
You have extracted DNA from various food sources (shown in column 3 of the table
You have extracted DNA from various food sources (shown in column 3 of the table at the top of the next page) and set up the following PCR reactions, where the universal plant pri…
You have failed attempt 1 of 2 to pass this quiz. Try Again... Online Learning H
You have failed attempt 1 of 2 to pass this quiz. Try Again... Online Learning Home Search Courses Help My AARC U My Account My Programs My Course Certificates Logout Education No…
You have found a family in Brookings in which some members are suffering from an
You have found a family in Brookings in which some members are suffering from anemia. Their DNA isolated and the alpha hemoglobin gene was sequenced. Below are the DNA sequences f…
You have found a family in Brookings in which some members are suffering from an
You have found a family in Brookings in which some members are suffering from anemia. Their DNA isolated and the alpha hemoglobin gene was sequenced. Below are the DNA sequences f…
You have found a layer in a site with a 2 points Save Answer to 1.2 species of f
You have found a layer in a site with a 2 points Save Answer to 1.2 species of fossil known as Rex. This of fossil has been found in many sites in the region, and has been dated t…
You have found a layer in a site with a species of fossil known as Snagglus Rex.
You have found a layer in a site with a species of fossil known as Snagglus Rex. This species of fossil has been found in many sites in the region, and has been dated to 1.2 - 1.3…
You have found a mutant mouse that does not express gene K in pancreatic beta ce
You have found a mutant mouse that does not express gene K in pancreatic beta cells. You sequence gene K in the mutant and there are no mutations in the transcribed region or prom…
You have found a mutant mouse that does not express gene K in pancreatic beta ce
You have found a mutant mouse that does not express gene K in pancreatic beta cells. You sequence gene K in the mutant and there are no mutations in the transcribed region or prom…
You have found a new streptomycin resistance allele in Streptococcus (the same b
You have found a new streptomycin resistance allele in Streptococcus (the same bacteria that Avery and Griffiths were working with). A wild type version of this allele is normally…
You have found that Natasha Romanoff (Black Widow) has cells that are normal for
You have found that Natasha Romanoff (Black Widow) has cells that are normal for secretion of hormones such as prolactin. Because you've mastered the entire secretory pathway of e…
You have found that Natasha Romanoff (Black Widow) has cells that are normal for
You have found that Natasha Romanoff (Black Widow) has cells that are normal for secretion of hormones such as prolactin. Because you've mastered the entire secretory pathway of e…
You have found that Natasha Romanoff (Black Widow) has cells that are normal for
You have found that Natasha Romanoff (Black Widow) has cells that are normal for secretion of hormones such as prolactin. Because you've mastered the entire secretory pathway of e…
You have found that a mutation in a gene for a certain transcription factor resu
You have found that a mutation in a gene for a certain transcription factor results in a defect in cartilage formation, but has no effect on heart formation. A possible explanatio…
You have found two isolated populations of mice inhabiting a frat house. One pop
You have found two isolated populations of mice inhabiting a frat house. One population is in the basement cabinets of the frat house. This population exhibits grey fur, red eyes …
You have four colonies of mice that are independent of each other. Each has a tr
You have four colonies of mice that are independent of each other. Each has a true-breeding mutation resulting in a short tail. For each colony, the short tail phenotype is rece…
You have four colonies of mice that are independent of each other. Each has a tr
You have four colonies of mice that are independent of each other. Each has a true-breeding mutation resulting in a short tail. For each colony, the short tail phenotype is recess…
You have four colonies of mice that are independent of each other. Each has a tr
You have four colonies of mice that are independent of each other. Each has a true-breeding mutation resulting in a short tail. For each colony, the short tail phenotype is recess…
You have four colonies of mice that are independent of each other. Each has a tr
You have four colonies of mice that are independent of each other. Each has a true-breeding mutation resulting in a short tail. For each colony, the short tail phenotype is recess…
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