What is an Aminopterin

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#Question id: 31382

#Unit 4. Cell Communication and Cell Signaling

The activation of PI 3-kinase leads to the activation of a kinase, known as:

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#Question id: 3270

#Unit 11. Evolution and Behavior

Heterozygote advantage should be most closely linked to which of the following?

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#Question id: 19455

#Unit 13. Methods in Biology

Resolution is improved by using 

1. Shorter wavelengths of light 

2. Gathering less light

3. Gathering more light

4. Longer wavelengths of light 

Choose the option with all incorrect statements?

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#Question id: 12503

#Unit 8. Inheritance Biology

In this pedigree II 1 is affected with an autosomal recessive disorder. The disease status for II 2 is unknown. A and B represent alleles at a locus which is tightly linked to the disease locus with recombination fraction of 0. Using the linked markers, II2 can be told that:

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#Question id: 15725

#Unit 11. Evolution and Behavior

Alfred Russel Wallace (1823–1913), who was collecting specimens in the Malay Archipelago, had independently conceived that