As an Amazon Associate I earn from qualifying purchases.

What is ABC hypothesis in Biology? PDF | Download eBooks

Learn ABC hypothesis definition in biology with explanation to study “What is ABC hypothesis”. Study abc hypothesis explanation with biology terms to review biology course for online degree programs.

ABC hypothesis Definition

  • ABC hypothesis of flower formation proposes that three classes of genes direct the formation of the four types of floral organs.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson

ABC hypothesis Explanation

The ABC model, which aims to describe the biological basis of the process from the perspective of molecular and developmental genetics. It is a scientific model of the process by which flowering plants produce a pattern of gene expression in meristems that leads to the appearance of an organ oriented towards sexual reproduction, a flower. There are three physiological developments that must occur in order for this to take place: firstly, the plant must pass from sexual immaturity into a sexually mature state (i.e. a transition towards flowering); secondly, the transformation of the apical meristem's function from a vegetative meristem into a floral meristem or inflorescence; and finally the growth of the flower's individual organs.

Keep Learning Biology Explanations

What is Nuclear membrane?

Nuclear pores are small openings on the membrane of the nucleus which allows the entering of substances inside the nucleus ...

What is Genome?

A genome is the entire genetic information of an organism. Every copy of the cell has the entire genome but ...

What is Karyotype?

A karyotype is the number and appearance of chromosomes in the nucleus of a eukaryotic cell. When the chromosomes are ...

What is Sexual dimorphism?

Sexual dimorphism is the condition where the two sexes of the same species exhibit different characteristics beyond the differences in ...

What is Secondary growth?

Secondary growth is the growth that results from cell division in the cambia or lateral meristems and that causes the ...

What are Stem cells?

Stem cells are cells that can differentiate into other types of cells, and can also divide in self-renewal to produce ...