List of top Biology Questions

Acetabulum is present in
Miller performed experiment to prove abiogenic molecular evolution of life. Which molecule was not present in Miller's experiment?
According to the theory of mutation by Hugo de Vries
Which one of the following is not observed during prophase I stage of meiosis?
The nomenclature system used by Linnaeus indicated_____of the organism
E.coli cells having DNA radio labelled with $^{15}N$ were placed in culture medium containing non radioactive $N^{14}$ isotope for three generations. What will be the percentage of ratioactivity in DNA of the progeny?
Which one of the following are not strictly macromolecules although obtained in macromolecular fraction during cell content separation?
Which of these include onlyautotrophs?
To induce feminising effect in cucurbits, which of the following combinations of plant growth regulators should be used?
After double fertilization, the secondary nucleus gives rise to
According to starch-sugar conversion theory of stomatal movement, during stomatal opening
According to Oswald and Tippo's classification system. Kingdom Plantae is divided into
Polyembryony is observed in plants like Mango. Nucellar cells develop into the embryos. Which of the following is true?
Indicate the statement which is not correct?
The plants growing under environmental stress condition, seeds germinate while they are on the mother plant. An example for such a condition is :
Herkogamy is common in Datura plants. In Herkogamy. anther and stigma are placed at different positions so that the pollen cannot come into contact with the stigma of the same flower. Which of the following is true?
Study the following lists: The correct answer is
Abingdon tortoise in Galapagos islands became extinct within a decade after goats were introduced. It is an example of
Which of the following is a function of ethylene?
In prokaryotes, enzymes for respiration are found in
Which of the following is correct match of organism and respective structures?
Enzymes used in detergents to remove oil stains are sourced from
Closely linked genes can be separated by
Incurrent and radial canals in syconoid sponges are interconnected with the help of
Tissue level of organisation is not found in