Practice free Botany NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
What is the primary genetic outcome of mitotic division?
The text states, 'Mitosis usually results in the production of diploid daughter cells with identical genetic complement.' This accurately describes the genetic outcome of mitosis.
The continuous growth of plants throughout their life is mediated by mitotic divisions in which specific tissues?
The NCERT states, 'Mitotic divisions in the meristematic tissues – the apical and the lateral cambium, result in a continuous growth of plants throughout their life.' This highlights the specific tissues responsible for continuous growth.
Cells that exit the cell cycle and enter the quiescent stage ($G_0$) are characterized by:
The context clearly states, 'Cells in this stage remain metabolically active but no longer proliferate unless called on to do so depending on the requirement of the organism.' This defines the key characteristic of cells in $G_0$.
In animal cells, mitotic division is typically observed in:
The NCERT text mentions, 'In animals, mitotic cell division is only seen in the diploid somatic cells.'
Given that some cells do not divide (e.g., heart cells) and others divide occasionally to replace lost cells, these cells are described as exiting the G1 phase and entering which stage?
The text states, 'These cells that do not divide further exit G1 phase to enter an inactive stage called quiescent stage (G0) of the cell cycle.'
Which of the following taxonomic categories, when arranged in an ascending hierarchical order, comes immediately after 'Family' but before 'Class'?
The taxonomic hierarchy in ascending order is Species, Genus, Family, Order, Class, Phylum/Division, Kingdom. Therefore, 'Order' comes immediately after 'Family' and before 'Class'.
As we move from species to kingdom in the taxonomic hierarchy, what happens to the number of common characteristics shared between members within a taxon?
As stated in the NCERT text: 'as we go higher from species to kingdom, the number of common characteristics goes on decreasing. Lower the taxa, more are the characteristics that the members within the taxon share.'
In the classification of plants, what is the higher category assigned to classes with a few similar characters?
The NCERT text states: 'In case of plants, classes with a few similar characters are assigned to a higher category called Division.'
According to the provided table, which taxonomic category does 'Homo' represent for 'Man'?
Looking at Table 1.1, for 'Man', the 'Biological Name' is 'Homo sapiens', and 'Homo' is listed under the 'Genus' column.
'Taxon' is defined as:
The NCERT text mentions: 'Each category, referred to as a unit of classification, in fact, represents a rank and is commonly termed as taxon (pl.: taxa).' It also says, 'These taxonomic groups/categories are distinct biological entities and not merely morphological aggregates.' Furthermore, based on characteristics, organisms are grouped into categories, and these categories are taxa. So all options are relevant to the definition of a taxon.
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The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.