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A man and a woman both have polydactyly (i.e., six fingers on each hand), a trait which is determined in this example by a single gene. They have four children, none of whom have polydactyly. What is the probability their next child will have polydactyly?
A) 0.0
B) 0.003
C) 0.08
D) 0.25
E) 0.75
List one assumption of the Hardy-Weinberg (HW) equilibrium model (1). Give two possible biological reasons for why a population might deviate from the genotypic frequencies expected under HW equilibrium (2). Explain the type of deviation expected ..
The pUC series plasmid contains LacZ gene with multiple cloning site. Suppose if you insert a piece of DNA into this LacZ gene, how will you tell which one is your recombinant.
Discuss three positive and three negative impacts of humans on the biosphere. Which positive and negative impacts do you believe are the most significant to consider. Justify your response.
A simple batch fermentation of an aerobic bacterium grown on methanol gave the given experimental results:
Why is it likely that this protein(glycophorin) cannot slip out ofthe membrane and dissolve in the cytoplasm of the cell or in theextracellular fluids?
In a protein sequence, which repeated sequence over a twenty amino acid stretch would most likely lead to insertion of a transmembrane domain into a lipid bilayer.
A species has a diploid number of 2n. Meiosis I fails during spermatogenesis, cytoplasm does not divide and only one daughter cell is manufactured. The resulting sperm fertilizes a normal ovum.
List the supporting structures of the male reproductive system. What is the tunica albuginea? How does it aid in dividing the testis into lobules? What are the two primary functions of the testes?
In the stable form of protein, what is generally oriented to the interior of the protein molecule?
A solution which is 3.19X10 to the -3 M in an acid (HA) and 6.78x10 to the -3 M in its conjugate base (A-) is found to have a pH of 8.65. What is the Ka of the acid?
Which other adaptations allowed icefish blood to carry sufficient O2 to the tissues, despite loss of RBCs? (NOTE: check all that apply) larger gills larger hearts scaleless skin with unusually large capillaries increased volume of blood serum.
Summarize your analyses by concluding whether the data support or disprove Hypotheses A, B, and C. Then discuss how your conclusions might relate to the many factors that influence forest composition.
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