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As a consequence of independent assortment (Mendel's 2nd law) of chromosomes during meiosis, each mature gamete from an individual differs greatly in the combination of chromosomes inherited from the parents of that individual.
However, it could be a mistake to assume that every homologous chromosome that a gamete receives after meiosis is solely from the mother or father. Explain why this could be so using the following data.
A man with a dominant phenotype for a particular set of traits on the same chromosome, say finger length (F) and hair texture (H), with long fingers & curly hair dominant over short fingers and straight hair.
His wife shows the homozygous recessive phenotype for both traits, short fingers with straight hair and should produce gametes of the same genetic make-up. One of their children has the long finger and straight hair phenotype.
Diagram the homologous chromosomes, the gametes, any relevant events before and during gamete production and fertilization to support your argument explaining how this child could have this particular phenotype.
A female neonate is noted at birth to have a gross deformity of her lower back. Examination of the subcutaneous scar reveals disorganized neural tissue with entrapment of nerve roots. What is the appropriate diagnosis?
The muscles that form the rotator cuff include the: biceps brachii and deltoid, subclavius, deltoid, and pectoralis minor.
Discuss the purpose of the immune system is to recognize foreign bodies and respond with the production of immune cells and proteins.
In sunflowers, the alleles for large flowers(L), tall plants (D), yellow petals (E), and summer-flowering (R) are dominant over their respective alleles for small flowers (l), dwarf plants (d), white petals (e), and fall-flowering (r). Assume that..
How various ATP equivalents are required to synthesize de novo one molecule of IMP, starting from ribose-5-phosphate? Presume that all required precursors in the pathway are present.
A 33 year old woman discovers a lump in her breast on her left breast on self examination. Her mother and sister both had breast cancer.
Is a catalase test perfromed on colonies from a BAP? State reasons to support your answer.
The altered tRNA translates the UGA as tryptophan. What nucleotide varies has probably occurred in the mutant tRNA molecule? What consequences will the presence of such a mutant tRNA have for the translation of the normal genes in this cell.
If I was given a chain of amino acids that make up a protein, knowing that some residues have pka values, how would I go about determining the Pka of the protein as a whole. Do I just add the pka values together?
You have read that inorganic fertilizers contribute to water pollution and would like to make a switch from inorganic fertilizers to organic compost in your vegetable garden.
What changes do the promoter and the polymerase undergo during the transition from a closed to an open complex? What drives this transition in prokaryotes, and in eukaryotes.
Determine which of the following statements would be inaccurate regarding the discovery of the DNA molecule?
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