List of top Biology Questions

Which of the following organelles contain DNA? (i) Mitochondria (ii) Chloroplasts (iii) Golgi bodies (iv) Ribosomes
Which of the following stages of aerobic respiration takes place in the matrix of the mitochondrion? I $\quad$Oxidative decarboxylation of pyruvic acid II $\quad$Glycolysis III$\quad$ Krebs cycle IV$\quad$ Oxidative phosphorylation
Which of the following types of plastid does not contain stored food material?
Which one of the following is correct explanation for the floral formula $\quad\quad\% \Theta K_{\left(5\right)} C_{1+2+\left(2\right)}A_{\left(9\right)+1 }G_{1}$
Which one of the following shows maximum genetic diversity in India ?
Which organisation publishes the "Red Data Book"
Who has written the book Genera Plantarum?
Which of the following activates JG cells to release renin?
Which is primary consumer in maize field ecosystem
Which is not a parasitic adaptation
Uridine present only in RNA is
The site of $rRNA$ synthesis is
The pigment haemocyanin is found in phylum
The main function of clitellum is
The largest tiger reserve in India is
The age of pyramid with broad base indicates
Stinging capsules (nematocysts) are found in
Starting from the maximum, arrange the following male reproductive accessory organs in the correct order, based on the amount of secretion poured into urethra. (i) $\quad$Prostrate gland (ii) $\quad$Seminal vesicle (iii)$\quad$ Bulbourethral gland
$SER$ and $RER$ can be distinguished with its presence in
Select the correct sequence of steps in DNA fingerprinting involving southern blot hybridization using radiolabelled VNTR as a probe. I. $\quad$Hybridization using labelled VNTR probe. II. $\quad$Isolation of DNA. III. $\quad$Transferring (blotting) of separated DNA fragments to synthetic $\quad$$\quad$membranes, such as nitrocellulose or nylon. IV.$\quad$ Detection of hybridized DNA fragments by autoradiography. V. $\quad$Separation of DNA fragments by electrophoresis. VI. $\quad$Digestion of DNA by restriction endonucleases.
RNA interference involves
Oxidation state of iron in haemoglobin is
Occurrence of triploid (3n) primary endosperm nucleus is a characteristic feature of
Number of meiotic divisions necessary to produce 100 seeds in cyperus is
Non-endospermous seeds are found in