Which of the following are played an important role in the evolution of human chromosomes?

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#Question id: 16129

#Unit 13. Methods in Biology

5 You are studying regulation of the yeast enzyme glutamine synthetase (GS), which is encoded by the GLN1 gene. You have isolated two mutants, designated gln2– and gln3–, that give decreased GS activity. Mating of either gln2– or gln3– haploids to wild type produces heterozygous diploids that show normal amounts of GS expression. When you cross either a gln2– or gln3– haploid to a gln1– strain the resulting diploids show normal expression of GS.

Describe the cis-acting elements in the GLN1 promoter that are evident from these experiments, giving both their position and as much of their function as you can deduce.

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#Question id: 26456

#Unit 3. Fundamental Processes

Consensus sequence are

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#Question id: 1121

#Unit 4. Cell Communication and Cell Signaling

Which of the following provides the best evidence that cell-signaling pathways evolved early in the history of life?

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#Question id: 32577

#Unit 2. Cellular Organization

Which of the following binds to and stabilizes microtubules & causing a net increase in tubulin polymerization?

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#Question id: 33489

#Unit 2. Cellular Organization

Which of the following is correct combination of statements related to Dot matrix

A. It is a graphical way of comparing two sequences in a two dimensional matrix.

B. Residue matching is represented by dot is placed within the graph.

C. When the two sequences have substantial regions of similarity, a blank space is created