In some rare salamander species, all individuals are females. Reproduction relies on those females having access to sperm from males of another species. However, the resulting embryos receive no genetic contribution from the males. Why do you think sperm are necessary for reproduction?

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#Question id: 17079

#SCPH28 | Zoology

The major disadvantages of using serum in the culture medium could be

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#Question id: 953

#SCPH05 I Biotechnology

 The degradation of arginine, histidine and proline all lead to the product ________.

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#Question id: 14115

#I Life Science/ Life Sciences Group – I-V

Which one of the following is a database of protein sequence motifs?

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#Question id: 7767

#SCPH28 | Zoology

How can evolution select for phenotypes that postpone reproduction or sexual maturity?” There is often a trade-off between reproduction and maintenance, and in many species reproduction and senescence are closely linked. Recent studies of mice, Caenorhabditis elegans, and Drosophila suggest that there is a conserved genetic pathway that regulates aging and that it can indeed be selected for. This pathway involves the response to insulin and insulin-like growth factors, Name of these transcription factors are

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#Question id: 11667

#SCPH28 | Zoology

Which of the following is characteristic of juxtamedullary nephrons?