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Two dominant alleles in mice both affect the appearance of the tail. Shorty (S) produces mice with short tails and hairy (H) produces mice with hairy tails. A testcross was carried out between a dihybrid male SsHh and tester female sshh that produced the following baby mice:Phenotype Genotype ProgenyShort hairy tail SsHh 5 Long bald tail sshh 5 Short bald tail Sshh 15 Long hairy tail ssHh 15 Q) If the genes are unlinked, what would the expected number of short bald tail mice have been?Q) Using the four phenotypes above, the Chi-square value from the hypothesis that the shorty and hairy genes sort independently is:Q) What were the parental chromosomes in the dihybrid male?
make an experiment to test what happens (i.e. what is the final plasmid DNA content of cells in a transformed colony) if a competent cell is transformed with circular double-stranded plasmid DNA where there is a mis-match (e.g. a G-T base-pair ins..
Find out the genotypes of the two black females and the brown male using allele symbols B and b. One shows linear carbon chains, another has one -CH3 groups present on the third carbon atom, and third has two -CH3 groups present on the second carbon ..
Atoms can be represented by simply listing the number of protons, neutrons, and electrons-for example, 2 p+; 2 n0; 2 e- for helium. Which atom represents the 18O isotope of oxygen.
Explain how sexual reproduction in plants illustrates alternation of generations. Include the processes involved and include at least one type of plant to illustrate your answer.
usually for physical education disciplines, students are required to give presentation regarding a single protein that is related to sports or diseases.
Hormone Z, responsible for maintaining normal blood levels of chemical A, binds to membrane-bound receptors on its target cells. These target cells use G-protein and cyclic AMP to carry out the response of hormone Z. compute the consequences if a dru..
Explain the reverse transcription reaction (what are the components of the reaction? What are the possible primers for the reaction and how do they differ from each other?)
Aneuploidy can come about from the abnormal segregation of chromosomes called non-disjunction during meiosis. Describe and illustrate using chromosomes and a gene marker. Write the structual formula for salicylic acid.
With the help of the Nernst equation to calculate the equilibrium potential for these three ions.
Think about a population of one hundred individuals and the frequency of the A allele is 0.8 and the frequency of the a allele is 0.2. If the following fitness values for each genotype are applied to the next generation.
A quorum sensing response in a hypothetical organism results in upregulation of one gene and downregulation of another. Suppose that preliminary experiments have been performed and these experiments have shown that homoserine lactone functions as the..
Water at room temperature is placed in flask connected through rubber tubing to a vacuum pump and the pump is turned on.
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