List of top Biology Questions

Heart sound which is longer is
Haustra are found in
Hairy leaves of many plants are associated with
Growth can be measured in various ways. Which of these can be used as parameters to measure growth ?
Gujarat forest ??ir?
Gullet in ciliated protozoans is
Group of bacteria used in biogas production is
Grasslands of New Zealand are called
Grana are present inside the :
Gonyaulax is
Go through the following flow chart for division of subphylum vertebrata. Fill the gaps $A, B, C$ and $D$ and select the correct option.
Glycolysis occurs in the________ and produces________, which in the presence of O enters the____________.
Glisson's capsule is the characteristic feature of
Given table shows the $CO_{2}$ compensation point and optimum $CO_{2}$ concentration for photosynthesis for $C_{3}$ and $C_{4}$ plants. Select the correct values for $A$ and $B$.
Given pie-diagram represents the relative contribution of various greenhouse gases to total global warming. Identify the gases $P$, $Q$, $R$ and $S$.
Given figure is of filamentous blue green alga Nostoc. Identify die parts marked as $A$ and $B$ and select the correct option.
Given is the ultrastructure of an animal cell. Identify the parts marked as $A, B, C$ and $D$
Given below is an incomplete flow chart showing influence of hormones on gametogenesis in males. Observe the flow chart carefully and identify $A$, $B$ and $C$.
Given diagram represents the components of a transcription unit. Select the correct answer regarding it.
Given below is the diagram of human lymphatic system, where $A$, $B$, $C$ and $D$ are lymphoid organs. Select incorrect option regarding the lymphoid organs labelled as $A$, $B$, $C$ and $D$.
Given below is a list of different steps $(i-vi)$ involved in respiration. (i) Utilisation of $O_2$ by the cells for catabolic reactions. (ii) Transport of gases by the blood. (iii) Pulmonary ventilation by which atmospheric air is drawn in and $CO_2$ is released out. (iv) Release of resultant $CO_2$. (v) Diffusion of $O_2$ and $CO_2$ between blood and tissues. (vi) Diffusion of gases ($O_2$ and $CO_2$) across alveolar tissues. Select an option which has correct sequence of all the steps.
Given below is a table of factors affecting microbial decomposition. ($'+'$ means 'favouring' and $'-'$ means inhibiting or lowering). Select the correct option.
Given below are types of cells present in some animals. Which of the following cells can differentiate to perform different functions?
Given below are some differences between primary air pollutants and secondary air pollutants. Which one of the following is an incorrect difference?
Given below are a few statements regarding somatic hybridisation. Choose the correct statements. (i) Protoplasts of different cells of the same plant are fused. (ii) Protoplasts from cells of different species can be fused. (iii) Treatment of cells with cellulase and pectinase is mandatory. (iv) The hybrid protoplast contains characters of only one parental protoplast.