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Which of the following gastric cells indirectly help in erythropoiesis?
Match List I with List II regarding placentation types: List I (Plant) (A) China rose (B) Mustard (C) Primrose (D) Marigold List II (Placentation) (I) Free central (II) Basal (III) Axile (IV) Parietal
A stage in cell division is shown in the figure. Select the answer which gives the correct identification of the stage with its characteristics:
In the nuclear decay given below: $$ _{Z}^{A}X \rightarrow _{Z+1}^{A}Y \rightarrow _{Z-1}^{A-4}B^* \rightarrow _{Z-1}^{A-4}B $$ The particles emitted in the sequence are:
Which, among the following, are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?
In a typical fuel cell, the reactants (R) and products (P) are:
Which one single organism or the pair of organisms is correctly assigned to its or their named taxonomic group?
The binding energy per nucleon of ${}_{3}^{7}Li$ and ${}_{2}^{4}He$ nuclei are $5.60 \text{ MeV}$ and $7.06 \text{ MeV}$, respectively. In the nuclear reaction ${}_{3}^{7}Li + {}_{1}^{1}H \rightarrow {}_{2}^{4}He + {}_{2}^{4}He + Q$, the value of energy Q released is:
Regarding Meiosis, which of the statement is incorrect?
The production of gametes by the parents, formation of zygotes, the $F_1$ and $F_2$ plants, can be understood from a diagram called :
Crossing over takes place between which chromatids and in which stage of the cell cycle?
A double convex lens has a focal length of 25 cm. The radius of curvature of one of the surfaces is double of the other. What would be the radii if the refractive index of the material of the lens is 1.5?
Match List-I with List-II: List-I A. Pteridophyte B. Bryophyte C. Angiosperm D. Gymnosperm List-II I. Salvia II. Ginkgo III. Polystrichum (Polytrichum) IV. Salvinia
A body falls from a height $h=200 \text{ m}$ (at New Delhi). The ratio of distance travelled in each $2 \text{ sec}$ during $t = 0$ to $t = 6$ second of the journey is:
Match the following concerning the activity/function and the phytohormone involved: Column-I (Activity/Function) Column-II (Phytohormone) (a) Fruit ripening (i) Abscisic acid (b) Herbicide (ii) Ethylene (c) Bolting (iii) Auxin (d) Stress hormone (iv) Gibberellic acid
The power of a biconvex lens is 10 dioptre and the radius of curvature of each surface is 10 cm. The refractive index of the material of the lens is:
A prokaryotic autotrophic nitrogen-fixing symbiont is found in:
Which of the following is NOT an autosomal recessive disorder?
Select the correct statements regarding cell division stages.
Select the wrong statement: