Recombination between the D and a JH gene segment occur during pre pro-B cell to the early pro-B-cell stage.

TLS Online TPP Program

#Id: 636

#Unit 3. Fundamental Processes

Cytosine is deaminated to Uracil.

TLS Online TPP Program

#Id: 9472

#Unit 4. Cell Communication and Cell Signaling

Two mechanisms for terminating cytokine signaling:

1. Short-term regulation: SHP1

2. Long-term regulation: SOCS proteins

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#Id: 883

#Unit 13. Methods in Biology

In humans, chromosome 19 has the highest density of STRs. Disease associated with SSR are called as Repeat expansion diseases.

TLS Online TPP Program

#Id: 9523

#Unit 6. System Physiology – Plant

Three major types of insect herbivores

Phloem feeders, such as aphids and whiteflies, cause little damage to the epidermis and mesophyll cells. Phloem feeders insert their narrow stylet, which is an elongated mouthpart, into the phloem sieve tubes of leaves and stems. 

TLS Online TPP Program

#Id: 4638

#Unit 6. System Physiology – Plant

Seedlings grown in the dark display an etiolated growth pattern:

a) yellow unexpanded cotyledons

b) apical hook

c) Long hypocotyl