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White wool is dependent upon a dominant allele B and black woolupon its recessive b. A sample of Rambouill breed in Idaho gave thefollowing data: 891 white and 9 black. Find the allele frequencies.
In the arabinose operon, repression is mediated by araC binding to I2, forming a loop complex that prevents RNA polyermase from transcribing the operon. Why does looping prevent transcription while it seems the promoter sequence is adjacent to the..
Describe the advantages of a complete digestive system and a closed circulatory system in terms of efficiency. (60 words total 4. Discuss how modifications of the arthropod body plan have contributed to the biological success of these animals. (12..
What is the drug of choice use to treat this condition? What is the alternative drug used to treat this condition? What si the mechanism of action for both of these antimicrobials?
How many chromosomes would a female's somatic cells contain? I know there are normally 46 chromosomes, but what about barr body formation? Does that mean there are 45 chromosomes?
The human body comprises of the number of organ systems which work together to perform all the essential functions of body.
A plant line with reduced fertility comes to attention of a plant breeder who observes that seed pods often contain a mixture of viable seeds that can be planted to create new plants.
Use the following data to answer the questions 1 and 2. In a sample of double-stranded DNA from a particular bacterium with a circular chromosome, 43% of the nucleotide bases are Guanine (G).
If a cross involving one gene with incompletely dominant alleles and another gene with codominant alleles, how many phenotypic classes would there be in the F2?
Two consecutive crosses, with the first between pure-breeding parents that differ in two phenotypes to create an F1 generation, and the second in two F1 progeny to create an F2 generation.
In most biology experiments the relationship between the independent and the dependent variable can be best described as cause and effect. Describe.
How do the electron acceptors used in fermentation differ from the terminal electron acceptors used during aerobic respiration and anaerobic respiration?
In the friut fly Drosophila melanogaster, vestigial wings and hairy body are produced by two recessive genes located on different chromosomes. THe normal alleles, for long wings and hairless bodies are both dominant. Suppose a vestigial-winged, ha..
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