BioScience Dictionary

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Found Sequence 214 times.

Displaying results 1 to 10.

1. 16S rRNA
A large polynucleotide (about 1500 bases) which functions as a part of the small subunit of the ribosome of prokaryote s and from whose sequence evolutionary information can be obtained; the eukaryotic counterpart is 18S rRNA.

2. 5' end
The end of a nucleic acid sequence where the 5' position of the terminal residue isn't bound by a nucleotide .

3. Abnormal hemoglobin
Hemoglobin molecule with a different shape due to an altered amino acid sequence (ultimately caused by an altered DNA base sequence), such as in the inherited disease sickle-cell anemia .

4. Acropetal
In botany terminology, describes a plant part which is arising or developing in a longitudinal sequence beginning at the base and proceeding towards the apex.

5. Agroforestry
The collective word for all land-use systems and practices in which trees and shrubs are deliberately grown on the same land management unit as crops and/or animals. This can be either in some form of spatial arrangement or in a time sequence. To qualify as agroforestry, a given land-use system or practice must permit significant economic and ecological interactions between the woody and non-woody components. Within this broad definition, a wide variety of both traditional, as well as relatively new systems and practices, fall under the umbrella concept of agroforestry.

6. Alu sequence
Any of a family of short (300 base pair s long) repeated sequence s that occur throughout the human genome .

7. Amino acid
Any of a class of 20 molecules that are combined to form protein s in living things. The sequence of amino acids in a protein and hence protein function are determined by the genetic code .

8. Amino acid sequence
Also known as the primary structure of a protein/polypeptide; the sequence of amino acids in a protein/polypeptide controlled by the sequence of DNA bases.

9. Anneal
* The sustained heating of a material such as steel or glass at a specific high temperature, followed by gradual cooling; this is done to eliminate weakness or to produce other qualities. * The pairing of complementary DNA or RNA sequence s, via hydrogen bonding , to form a double-stranded molecule. Most often used to describe the binding of a short primer or probe .

10. Antagonistic effect
This is the consequence of one chemical (or group of chemicals) counteracting the effects of another chemical; the opposing chemicals cancel out each other's effects.

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