In which of the following organisms does holoblastic cleavage typically occur?

I) sea urchins

II) humans

III) birds

IV) fish

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#Question id: 1789

#SCPH01 Biochemistry

What is negative feedback on adaptive B-cell responses mediated by

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#Question id: 12918

#SCPH28 | Zoology

Name the enzyme which helps in the DNA synthesis in the PCR.

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#Question id: 5566

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

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: 16026

#SCPH05 I Biotechnology

At low glucose concentration, below 0.25 mmol/litre, large portions of glucose and glutamine is shunted via

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#Question id: 4337

#SCPH01 Biochemistry

Which of the following conditions is most likely to cause the lactose operon to be transcribed?