Consider a bacterial messenger RNA that has a coding region of 39 bases long that starts with an AUG and ends with the stop codon UAG. Not knowing any other information, how many different polypeptides are possible from such an mRNA? 433 6436 2013 12! = 12 × 11 × ... × 2× 1 2011 2012
Bacterial Genomics
The study of the morphological, physiological, and evolutionary aspects of the bacterial genome is referred to as bacterial genomics. This subdisciplinary field aids in understanding how genes are assembled into genomes. Further, bacterial or microbial genomics has helped researchers in understanding the pathogenicity of bacteria and other microbes.
Transformation Experiment in Bacteria
In the discovery of genetic material, the experiment conducted by Frederick Griffith on Streptococcus pneumonia proved to be a stepping stone.
Plasmids and Vectors
The DNA molecule that exists in a circular shape and is smaller in size which is capable of its replication is called Plasmids. In other words, it is called extra-chromosomal plasmid DNA. Vectors are the molecule which is capable of carrying genetic material which can be transferred into another cell and further carry out replication and expression. Plasmids can act as vectors.
Part A
Consider a bacterial messenger RNA that has a coding region of 39 bases long that starts with an AUG and ends with the stop codon UAG. Not knowing any other information, how many different polypeptides are possible from such an mRNA?
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433 |
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6436 |
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2013 |
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12! = 12 × 11 × ... × 2× 1 |
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2011 |
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2012 |
Part B:
How does crossing over affect Mendel's Law of Segregation for a pair of alleles of a human gene?
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it causes inheritance patterns to change considerably |
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it changes the ability to predict the outcome of a cross |
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it means different probabilities that sisters share alleles |
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it has no effect on the segregation of alleles of one gene |
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it causes genetic maps to be non-uniform along a chromosome |
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