Scientists have found that extracellular matrix components may induce specific gene expression in embryonic tissues such as the liver and testes. For this to happen, there must be direct communication between the extracellular matrix and the developing cells. Which kind of transmembrane protein would most likely be involved in this kind of induction?

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#Question id: 4809

#SCPH12 I Genetics

The upper most following figure above shows the locations of four genes on the genetic map of an organism; the lower figure shows the locations of the same four genes on a physical map derived from the nucleotide sequence of the DNA of that organism. The maps are not identical because

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#Question id: 15140

#SCPH05 I Biotechnology

Two types of pair-wise sequence alignment of the same hypothetical protein sequence fragments are illustrated in the figure below. Vertical bars between the sequences indicate the presence of identical amino acids. * symbols in Figure Y indicate residues not included in the alignment.

Which one of the following is correct?

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#Question id: 2650

#SCPH28 | Zoology

Lac operon is an example of

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#Question id: 8927

#SCPH05 I Biotechnology

Arthropods invaded land about 100 million years before vertebrates did so. This most clearly implies that

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#Question id: 2067

#SCPH05 I Biotechnology

Which of the following would likely diffuse through the lipid bilayer of a plasma membrane most rapidly?