BioScience Dictionary

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Ot.

Found Polyp 10 times.

Displaying results 1 to 10.

1. Polyp
A polyp is a growth protruding from a mucosal plane. Polyps are usually benign, but some have the potential to become cancerous.

2. Polyp
The sessile form of life history in cnidarians; e.g., the freshwater hydra.

3. Polypeptide
A chain of peptide s, or amino acid s, usually less than 100 amino acids long. A polypeptide is formed during the process of translation . One or more polypeptides are required to make a protein .

4. Polypetalous
With free petals. Compare gamopetalous .

5. Polyphagia
Great hunger; a sign of diabetes . People with this great hunger often lose weight.

6. Polypharmacy
* Administering several drugs at once. * Administering an excessive number of drugs.

7. Polyphenism
The existence of several phenotype s in a population which are caused by environmental influences rather than different genetic types.

8. Polyphyletic
Composed of members that originated, independently, from more than one evolutionary line. Compare monophyletic and paraphyletic .

9. Polyploid (polyploidy)
Having more than the normal (us. diploid ) number of chromosome s; a multiple of the haploid number that is caused by the chromosomal replication without nuclear division.

10. Polyploidy
Abnormal variation in the number of chromosome sets. The condition when a cell or organism has more than the customary two sets of chromosomes. This is an especially effective speciation mechanism in plants since the extra chromosomes will establish reproductive isolation with the parental population(s), an essential for speciation.

View web definitions »

Learn more about Polyp »