In electrophoresis because of the varying charges and masses, of different molecules

and particles of a mixture will migrate at different velocities under uniform force and

will thus be separated into single fractions.

TLS Online TPP Program

#Id: 7601

#Unit 5. Developmental Biology

In one pathway, sperm that have undergone the acrosome reaction bind directly to ZP2

TLS Online TPP Program

#Id: 10263

#Unit 6. System Physiology – Plant

ABRE PyACGTGGC & coupling element (CE) is a major cis‐acting element in ABA responsive gene expression. 

The basic leucine zipper (bZIP) transcription factors AREB and ABF can bind to the ABRE cisacting element to activate ABA‐dependent gene expression

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#Id: 695

#Unit 3. Fundamental Processes

1. DNA polymerase I is a single polypeptide of 103 kD. 

2. The chain can be cleaved into two parts by proteolytic treatment. The larger cleavage product (68 kD) is called the Klenow fragment. It is used in synthetic reactions in vitro. 

3. It contains the polymerase and the proofreading 3’–5’ exonuclease activities.

TLS Online TPP Program

#Id: 7371

#Unit 5. Developmental Biology

The transcription factors encoded by the pair-rule genes activate the segment polarity genes, whose mRNA and protein products divide the embryo into 14-segment-wide units, establishing the periodicity of the embryo. 

TLS Online TPP Program

#Id: 4871

#Unit 13. Methods in Biology

When the p-value is less than the level of significance (α), the null hypothesis is rejected. If the p-value so observed is not less than the significance level α, then theoretically null hypothesis is accepted.