A conserved region found in every core histone, called the histone-fold domain HFD.

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#Id: 2484

#Unit 13. Methods in Biology

TEMED catalyzes the decomposition of the persulfate ion to give a free radical (i.e., a molecule with an unpaired electron):

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#Id: 91

#Unit 5. Developmental Biology

Autonomously specified cells capable of differentiating autonomously (i.e., by itself) when placed in an environment that is neutral with respect to the developmental pathway.

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#Id: 3673

#Unit 3. Fundamental Processes

Prokaryotic mRNAs Have a Ribosome-Binding Site That Recruits the translational Machinery For translation to occur, the ribosome must be recruited to the mRNA.

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#Id: 10350

#Unit 4. Cell Communication and Cell Signaling

B cells migrate to the lymphoid follicles. They are directed there by chemokine interactions between CXCL13, which is secreted by follicular dendritic cells (FDCs).

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#Id: 2608

#Unit 13. Methods in Biology

Allele-specific polymerase chain reaction (AS-PCR) is a technique based on allele-specific primers, which can be used to analyze single nucleotide polymorphism (SNP) effectively including the transition, transversion and insertion/deletion polymorphism and has been exploited in the study of diseases research, molecular diagnosis, and forensic biological evidence.