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Many genes have been cloned and sequenced. The precise amino acid sequence of a polypeptide can be determined from the DNA sequence and the molecular weight can be calculated. Can a reasonable estimate of the native molecular weight of a protein be determined from the sequence of their structural genes? Why?
A diploid species has 2n = 52 chromosomes. If you found a monosomy in a member of this species, how many chromosomes would it have?
Within a population of plants there are two alleles that code for flower color, red and white. Red is the dominant allele. If there are 300 red flowers and forty-five white flowers,
Assume you have synthesized messenger RNA with bases incorporated in random sequence in the ratio 1U:5 Cs. In a protein?
Ribosomes found in bacterial cells consist of two subunits, a small subunit and a large subunit. S stands for Svedberg units, which indicated relative sedimentation rate in centrifuge for a particle of a given size and shape.
How can desulfovibrio be used in the removal of heavy metals in the contaminated environments? Which aspect of its metabolism is responsible?
What is potentiation and how does it pose a threat to living organisms. what responsibility does carson believe scientists have to the public.
Discuss how do fossils provide evidence for the theory of continental drift and explain how do fossils help scientists piece together the family tree of a given plant or animal?
MN blood types were assessed for a population that consists of 100 individuals: 45 have blood type M, 30 have blood type MN and 25 have blood type N. Is the population in Hardy-Weinberg Equilibrium with regards to this locus? Show your calculation..
In the fungus Neurospora, the td+ allele is needed for the cells to build the amino acid tryptophan. The mutant allele td results in an inability of the fungus to make its own trp,
Assume you had supply of nucleotides made with atoms that were twice as heavy as normal, and you permitted some cells to replicate their dna once, using only heavy nucleotides.
During gym class Sally noticed that her friend Melissa always ran faster than her. Sally knew that they exercised equally, so she wondered what could cause Melissa to run so fast.
Homologous chromosomes separate and are pulled to opposite sides of the cell during what stage of cell division? (Read each option carefully.)
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