MCQ on ABC Model of Flower Development in Plants




The ABC model of flower development is a genetic framework that explains how specific genes control the formation of floral organs in plants. It consists of three classes of genes: A (for sepals and petals), B (for petals and stamens), and C (for stamens and carpels). Combinations of these genes’ expressions determine the identity of each floral organ, leading to the diverse structures found in flowers. This MCQ on ABC Model of Flower Development will help you to understand the developmental mechanism of flower in Angiosperms.

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The ABC model of flower development is a genetic model that explains the formation of floral organs in:

The ABC model proposes that floral organ identity is determined by the combined activity of three classes of genes. What are these gene classes?

A genes are responsible for specifying the identity of which floral organs?

The combination of A and B gene activity leads to the development of which floral organs?

The combination of B and C gene activity results in the formation of which floral organs?

The C gene activity alone is responsible for specifying the identity of which floral organs?

The ABC model was first proposed based on studies in which flowering plant species?

The A, B, and C genes encode for:

The ABC model has been widely accepted and explains the genetic regulation of flower development in:

In the ABC model, which combination of gene activity leads to the development of a complete flower with all four types of floral organs?

The genetic regulation of flower development is controlled by various signaling pathways, including the production and response to plant hormones like:

Mutations in A genes may result in the conversion of sepals into:

The B genes play a crucial role in specifying the identity of which floral organs?

Mutations in C genes may lead to the transformation of carpels into:

The ABC model of flower development has provided essential insights into the genetic regulation of floral organ identity, contributing to our understanding of the evolutionary diversification of flowers. Which scientist proposed this model?

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MCQ on ABC Model of Flower Development



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