Biologists now routinely test for homology between genes in different species. If genes are determined to be homologous, how are they related to each other?

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#Question id: 10192

#Unit 6. System Physiology – Plant

Solar-tracking leaves present a nearly vertical position at sunrise, and during the night the leaves take a horizontal position, the sensing of light in solar-tracking leaves occurs in specialized regions of the leaf or stem, it can response for,

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#Question id: 18943

#Unit 13. Methods in Biology

The Microbial cells devoid of cell wall; us~ally produced by enzymic digestion of cell wan.

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#Question id: 11038

#Unit 7. System Physiology – Animal

Which of the following substances in plasma is the major factor that contributes to plasma colloid osmotic pressure?

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#Question id: 12763

#Unit 10. Ecological Principles

The life history traits favoured by selection are most likely to vary with

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#Question id: 3979

#Unit 3. Fundamental Processes

“Housekeeping genes” in bacteria are commonly expressed constitutively, but not all of these genes are expressed at the same level (the same number of molecules per cell).  The primary mechanism responsible for variations in the level of constitutive enzymes from different genes is that: