Practice question

MCQ

Question

The br2 (Brachytic 2 ) gene encodes a P-glycoprotein required for normal auxin transport in corn. Which one of the following describes the phenotype of br2 mutants?

Options

Choose one · Correct answer highlighted

Long internodes Short internodes Correct Broad leaves Tapering leaves

Explanation

enzyme catalysis and lipid structure analysis shows substrate affinity, transition state stabilization and phospholipid composition govern function. Consequently Short internodes emerges as the valid choice since it reflects catalytic efficiency and membrane organization, aligning with established principles in biochemistry literature.

Share this question

Discussion

Comments

0 comments

Please log in to join the discussion.

No comments yet. Be the first to start the discussion.

Related blogs

Guides and insights connected to this topic

Biology XII Lab Manual 09 Oct 2026

Experiment 12: Study of Prepared Pedigree Charts of Genetic Traits ( Rolling of tongue, Blood groups, Widow's peak, and Colour blindness.)

AIM To study of prepared pedigree charts of genetic traits such as rolling of tongue, blood groups, widow's peak and colour blindness. PRINCIPLE Pedigree analysis is study of inheritance of traits through family history over generations. Standard symbols are used to represent mal...

Genetic 25 Sep 2026

Genotypic Ratio - Definition, Calculation, Monohybrid Dihybrid Trihybrid Cross, Significance and Important Terms

Understand genotypic ratios, how to calculate them for monohybrid, dihybrid and trihybrid crosses, and why they matter in Mendelian genetics.

25 Sep 2026

Dominant and Recessive Traits - Definition, Homozygous Heterozygous Examples in Plants, Animals and Humans

Learn the difference between dominant and recessive alleles, how homozygous and heterozygous genotypes express traits in plants, animals and humans.