A swim bladder is a gas-filled sac that helps fish maintain buoyancy. The evolution of the swim bladder from lungs of an ancestral fish is an example of

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#Question id: 2806

#Unit 2. Cellular Organization

Pseudogenes arise from the action of an enzyme

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#Question id: 27402

#Unit 1. Molecules and their Interaction Relevant to Biology

In which of the following lipid two phosphatidic acids share a single glycerol (R1 and R2 are fatty acyl groups).

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#Question id: 862

#Unit 1. Molecules and their Interaction Relevant to Biology

Match the following

lysosomal protein degradation pathways	Found in
1. Nonselective	a-well-nourished cells	i-containing the pentapeptide Lys-Phe-Glu-Arg-Gln
2- Selective	b-starving cells

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#Question id: 7289

#Unit 1. Molecules and their Interaction Relevant to Biology

The following scheme shows the flowering status of a plant species and the photoperiodism. Which of the following conclusions is most appropriate?

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#Question id: 4379

#Unit 3. Fundamental Processes

Bromodomains are found in chromosome-associated proteins that contribute to transcriptional activation. To facilitate this activation, the bromodomains bind to histones, specifically their lysine residues that have been post-translationally modified by: