Biology for all -GIC, PGT, TGT, LT grade and uppcs (biology)

Ion absorption by root is more pronounced in

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Spore bearing organ in the form of cone is said to be form in ?

Sporocarp present in

Riboflavin is obtained from

Nitrifying bacteria ,sulphur oxidising bacteria and methanogens are example of ?

Obligate anaerobe are not able to survive in presence of oxygen because of

Endospore can be formed by which of the following ?

The phenomenon of "Resupination"—where the flower twists 180 degrees during development so that the morphologically upper petal (labellum) becomes the lower landing platform for insects—is characteristic of which family?

Taxonomy-one liner Branched stamen -ricinus communis Family with inferior ovary -Asteraceae ,cucurbitaceae ,orchidaceae ,apiaceae Cyathium inflorescence -euohorbiaceae Tetradynamous condition-brassiaceae (outer two short ,inner 4 long ) Infloresence types in different families - 1) Asteraceae -capitulum Apiaceae -umbel Poaceae -spikelet Fabaceae -raceme Solanaceae -cymose Lamiaceae -verticillaster Euphorbiaceae -cyathium Areacacea -spadix Gynobasic style -lamiaceae Principle of numerical taxonomy was developed by - sokal and sneath Diadelphous stamen-poaceae (9 stamen in one bundle and one in alone) Monoadelphous stamen -malvaceae family-hibiscus ,cotton and okra Monocarpellary ovary -fabaceae family Bicarpellary -solanaceae Brassiaceae,Asteraceae Tricarpellary -liliacea

Gene for production of primary precursor for production of golden rice ,psy has been obtained from ?

Round up is a genetically modified variety of soyabean ,maize or canola ,which show?

Types of Evolutionary Traits Cladistics relies on analyzing traits (characters) to determine how closely organisms are related. Characters are divided into two main types: [1, 2, 3, 4] Plesiomorphy (Ancestral Trait): A primitive trait inherited from a distant ancestor that does not change across the lineage. For example, having a backbone is a plesiomorphy for mammals; it doesn't help separate mammals from birds or reptiles. Apomorphy (Derived Trait): A newly evolved trait unique to a specific clade. Synapomorphy: A shared derived trait present in two or more groups and their immediate common ancestor. Cladistics relies entirely on synapomorphies to build trees. For example, mammary glands and hair are synapomorphies that define mammals.

Key Concepts in Cladistics To understand cladistic classification, it is essential to understand its foundational terms and metrics: Clade: A single evolutionary branch that includes a common ancestor and all of its descendants. Monophyletic Group: The only valid grouping in pure cladistics. It represents a complete clade (ancestor + all descendants). Paraphyletic Group: An invalid grouping that includes a common ancestor and some, but not all, of its descendants (e.g., traditional "Reptiles," which excludes birds). Polyphyletic Group: An invalid grouping of organisms that lacks a recent common ancestor, often grouped together incorrectly due to convergent evolution (e.g., "Warm-blooded animals," grouping mammals and birds

Hetrostyly is a contrivance for cross pollination in

Concept of genus was proposed by ?

Malacophyllous xerophyte among the following is ?