TLS Online TPP Program

#Question id: 778


Inactive miRNA undergoes how many cleavages before incorporation into the RISC complex?

#SCPH06 I Botany
  1. 0

  2. 1

  3. 2

  4. 3

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TLS Online TPP Program

#Question id: 7001

#SCPH28 | Zoology

If the apical ectodermal ridge is surgically removed from an embryo, it will lose ________.

TLS Online TPP Program

#Question id: 9280

#SCPH06 I Botany

Oxygen-Evolving Organisms Have two Photosystems that Operate in Series, explain by emerson that is the Photosystem I preferentially absorbs far-red light of wavelengths greater than 680 nm; photosystem II preferentially absorbs red light of 680 nm and is driven very poorly by far-red light; Another difference between the photosystems is that,

a.) Photosystem I produces a strong reductant, capable of reducing NADP+, and a weak oxidant

b.) Photosystem I produces a very strong oxidant, capable of oxidizing water, and a weaker reductant than the one produced by photosystem II

c.) Photosystem II produces a strong reductant, capable of reducing NADP+, and a weak oxidant

d.) Photosystem II produces a very strong oxidant, capable of oxidizing water, and a weaker reductant than the one produced by photosystem I

Which statements would be CORRECT?

TLS Online TPP Program

#Question id: 2934

#SCPH01 Biochemistry

Cyclin D/Cdk4 functions during:

TLS Online TPP Program

#Question id: 3038

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

If a culture starts with 50 cells, how many cells will be present after five generations with no cell death?

TLS Online TPP Program

#Question id: 15656

#SCPH06 I Botany

You are studying a new strain of E. coli that can utilize the disaccharide melibiose very efficiently. You find that utilization depends on the enzyme melibiase, which is encoded by the gene Mel1. Mel1 is not expressed unless melibiose is present in the growth medium. Explain the two regulatory pathways for Mel1 that can explain the behavior of the MelA– and MelB– mutations. For each regulatory pathways what is a role for the inducer melibiose?