Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEST2018BiologySexual Reproduction in Flowering Plants

In the ABC model of floral organ determination in Arabidopsis, the expression of class A genes alone determines development of sepals, expression of class A genes along with class B genes determines petal formation, expression of class B genes along with class C genes determines formation of stamens and expression of class C genes alone determines carpel formation. Loss of class B gene function would result in flower

Options

  1. Asepal, sepal, carpel, carpel
  2. Bsepal, petal, petal, sepal
  3. Ccarpel, stamen, stamen, carpel
  4. Dsepal, petal, stamen, carpel

Correct answer

A. sepal, sepal, carpel, carpel

Step-by-step solution

No solution available.

Practice Sexual Reproduction in Flowering Plants on Quantrex Academy →

More from Sexual Reproduction in Flowering Plants

Choose the correct sequence of wall layers in a microsporangium of an angiosperm. 2026Which of the following statement is/are correct for cleistogamous flowers a) They have exposed anthers and stigma b) They produce assured seed set c) They need pollinators for poll 2026Pollen grains are well preserved as fossils because of the presence of _____ 2026Two species of a flowering plant, P (2 n =20 chromosomes ) and Q (2 n =30 chromosomes) are reciprocally crossed with each other as male or female as shown below to produce F1 seeds 2024In the ABC model, the acquisition of floral organ identity is regulated by the floral homeotic genes namely A, B and C. A wild-type flower is depicted below. Consider the following 2023An angiosperm plant of genotype ppQqRRSS pollinates another plant with genotype PPQQRRss. If the genes are not linked, the genotype of the embryo and endosperm in the resulting see 2021During fertilisation in plants the male and female gametes unite, triggering the process of cell division followed by seed formation. A gene BBM1, expressed only in the male gamete 2020Listed below are different plant reproductive strategies. I. Parthenocarpy II. Syngamy III. Apomixis IV. Polyembryony Which of them can give rise to a clonal progeny having the sam 2019 Full Sexual Reproduction in Flowering Plants list All NEST PYQs