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Q1. Comparisons of amino acid sequences can shed light on evolutionary divergence of related species. Would you expect all the proteins of given set of living species to demonstrate the same degree of divergence? Why or why not?
Q2. A student, who has not learned properly how to prepare solutions, added 25.7 g of sucrose to exactly 150.0 mL of dH2O and assumed that a 0.5 M solution had been prepared. The total solution volume increased to 168.0 ml after sucrose was dissolved and the solution was thoroughly mixed.
Find out the actual concentration of the sucrose solution prepared by the student.
Write a balanced chemical equation for this reaction and write the rate law for this reaction.
Which statement is the most correct regarding transcription/translation?
Analysis of preserved leaves shows that the density of stomata per unit area has decreased over the past 200 years. Suggest (and support) a hypothesis that explains this phenomenon.
Why is it impossible to induce nonsense mutations (represented at the mRNA level by the triplets UAG, UAA, and UGA) by treating wild-type strains with mutagens that cause only A-T? G-C transitions in DNA?
What type of tissue would you choose if you wanted to produce clones? That is, if you wanted to produce a plant from a single cell? explain.
Two alleles at a loci, like for polydactyly. The dominant gene gives you six fingers on a hand. 20% of the alleles are dominant in a population, the rest are recessive.
Using these data, estimate the density (number/hectare) of each size class plus the overall density. [Note: 1 hectare = 10,000 m 2 .]
Bacteriophage M13 infects E. coli differently from the way bacteriophage T2 does. The M13 coat is removed in the inner membrane of the bacterial cell, where it is sequestered during phage replication.
Describe how these two processes are linked between plants and animals based on the reactants and products (water, carbon dioxide, glucose and oxygen) of both pathways.
What are the most probable genotypes of the male and female parents? Give details the strategy used to determine the genotypes. What is the probability of the subsequently offspring having a spotted brown tail.
How do codons relate to primary structure of proteins? Be able to construct a strand of messenger RNA from the sense strand of DNA (TRANSCRIPTION) and understand where this happens in a cell. How does the RNA differ from the DNA? How do mutations in ..
It is January and the starting of a new semester. Just as you get settled in to your new routine, you begin to notice that illness is spreading across campus and other students in your classes are so sick they do not come to virology class.
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