The normal eye color of Drosophila is red, but strains in which all flies have brown eyes are available. Similarly, wings are normally long, but there are strains with short wings. A female from a pure line with brown eyes and short wings is crossed with a male from a normal pure line. The F1 consists of normal females and short-winged males. An F2 is then produced by intercrossing the F1. Both sexes of F2 flies show phenotypes as follows:

Are genes for eye color and wing length x link or autosome? 

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#Question id: 693

#Unit 1. Molecules and their Interaction Relevant to Biology

In an alpha helix, the R groups on the amino acid residues:

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#Question id: 10744

#Unit 10. Ecological Principles

Something that triggers a fixed action potential (FAP) is considered to be a(n) _____________.

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#Question id: 29027

#Unit 11. Evolution and Behavior

Which of the following is not the characteristics of fixed action pattern?

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#Question id: 11133

#Unit 7. System Physiology – Animal

Which of the following statements accurately describes a feature of temperature sensation by the nervous system?

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#Question id: 40

#Unit 1. Molecules and their Interaction Relevant to Biology

Given that the standard free-energy change for the reaction glucose + Pi → glucose 6-phosphate is 13.8 kJ/mol, and the standard free-energy change for the reaction ATP → ADP + Pi is −30.5 kJ/mol, what is the free-energy change for the reaction glucose + ATP → glucose 6-phosphate + ADP?