FB2026_03 , released September 17, 2026

CV Term Report

Help Close All Open All

General Information

Term

amorphic allele - molecular evidence

ID (Ontology)

FBcv:0000689 (FlyBase CV)

Definition

An allele shown by molecular evidence to completely lack function, producing either a completely inactive gene product or none at all.[ FlyBase:FBrf0049147 ]

Also Known As

"molecular null"

Comment

Links to External Ontologies

Annotations

Records annotated with this term OR any of its CHILD TERMS

Choose a record type to view annotations for this term and its child terms. Direct annotations and full annotation statements below also provide HitList buttons.

Results list data from multiple species. Choose a record type above to open its HitList.

Direct annotations: records annotated with this exact term (child terms are NOT included)

Data Class	Field	Direct annotations
Alleles (FBal)	ALLELE_CLASS
Alleles (FBal)	PROMOTED_CLASS

Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

Full annotation statements	Relevant FlyBase reports
Full annotation statements	Alleles
amorphic allele - molecular evidence (all annotations which use CV term, excluding "NOT" statements)

Spanning Tree (Parents/Children)

  loss of function allele
   |__amorphic allele
       |__amorphic allele - molecular evidence  2399 rec.
           |__temperature conditional amorphic allele - molecular evidence 2 rec.
               |__cold sensitive amorphic allele - molecular evidence
               |__heat sensitive amorphic allele - molecular evidence 2 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	amorphic allele
Part of
Synonyms & Secondary IDs
Synonyms
	"molecular null" EXACT
Secondary IDs

External Crossreferences & Linkouts