In hermaphrodites, expression of the egl-1 gene in the neurons is repressed by the transcription factor, and deletion of that causes these neurons to undergo apoptosis;

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#Question id: 15780

#Unit 5. Developmental Biology

In drosophila, the somatic cells of the hub are able to regulate stem cell proliferation by secreting the paracrine factor Unpaired onto the cells attached to them. Unpaired activates the JAK-STAT pathway in the adjacent germ stem cells to specify their self-renewal. Those cells that are distant from the paracrine factor cannot receive this signal, they begin their differentiation into the sperm cell lineage. This means hub cells act as

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#Question id: 14085

#Unit 1. Molecules and their Interaction Relevant to Biology

The edge of an A:T base pair displays the chemical groups in the order in the major groove. The code would be

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#Question id: 15604

#Unit 12. Applied Biology

The bacteria which cause septicaemia are fast becoming resistant to the antibiotics used for controlling them. Which one of the following explanations fits best?

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#Question id: 11569

#Unit 7. System Physiology – Animal

Oxytocin and antidiuretic hormone (ADH) are synthesized in the ________ but released from the ________.

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#Question id: 4160

#Unit 3. Fundamental Processes

Different tRNA molecules that bind the same amino acid are called __ tRNA molecules.