STD 11 - 3. Plant kingdom — NEET STD 11 Science — Question

$I.$ Cytokinins are formed primarily in roots

$II.$ Auxin and cytokinin are antagonistic in apical dominance

$III.$ Kinetin (a modified $DNA$ purine) was discovered from herring sperm

$IV.$ Zeatin is auxin

$V.$ Zeatin was firstly extracted from herring

Choose the incorrect one

$I.$ In liverworts sexual reproduction occurs by the fusion of antherozoids and egg, which are produced in anthridium and archegonium, respectively

$II$. Both male and female sex organs may be present on same thalli or different thalli

$III.$ Zygote give rise to sporophyte, which is differentiated into food, seta and capsule

$IV$. Some cells of capsule undergoes meiosis and give rise to haploid spores

Reason : $mRNA$ is transferred from the nucleus into cytoplasm where ribosomes and amino acids are available for protein synthesis.