In humans, organogenesis in the embryo is basically accomplished by the end of which period of the pregnancy?

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#Question id: 10404

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

PIFs promote etiolated development in the dark phenomenon known as

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#Question id: 19127

#SCPH06 I Botany

Certain advantages of biosensors include

1. Device is tiny and biocompatible

2. Device is expensive, big in size

3. It is durable 

4. Assay should be rapid and non-accurate 

Which of the following statements are correct?

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#Question id: 15637

#SCPH01 Biochemistry

You have isolated two mutations in the Lac operon that cause constitutive expression of Lac genes. You designate these mutants Lac1– and Lac2–. Making use of an F' that carries the Lac operon with the LacY gene mutated, you construct strains that you test for both ß-galactosidase activity and Lac permease activity with results shown below.

     

Classify each mutation as dominant or recessive and as cis- or trans-acting, giving the experimental result that allows you to arrive at each conclusion. Finally, deduce what type of Lac mutation best fits the properties of Lac 1– and of Lac 2–.

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#Question id: 18890

#SCPH01 Biochemistry

Which part of the light microscope controls the intensity of light entering the viewing area?

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#Question id: 1048

#SCPH28 | Zoology

A virion is composed of