a one type of phenotypic character present in animals which differ between the sexes but do not play a direct role in reproduction, this trait is called as ?

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#Question id: 4548

#Unit 3. Fundamental Processes

 σ- subunit of prokaryotic RNA polymerase describing is incorrect

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#Question id: 12064

#Unit 9. Diversity of Life Forms

Which taxon of eukaryotic organisms is thought to be directly ancestral to the plant kingdom?

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#Question id: 21183

#Unit 13. Methods in Biology

This PCR have mixtures of similar oligonucleotides that are used in a PCR to amplify unknown sequences of DNA, related to a known DNA sequence is

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#Question id: 1966

#Unit 4. Cell Communication and Cell Signaling

Mammals have Toll-like receptors (TLRs) that act in a manner similar to those of insects. While not specific to a particular pathogen, a TLR can recognize a kind of macromolecule that is absent from vertebrates but present in/on certain groups of pathogens. Which of the following is most likely to be recognized by a particular TLR that defends against some viruses?

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#Question id: 12583

#Unit 10. Ecological Principles

Which of the following is caused by excessive nutrient runoff into lakes?