List of top Biology Questions

Which type of bond is found between amino acids in a protein chain?
The part of the brain responsible for maintaining posture and balance is the:
The gradual and predictable change in species composition in an area is known as:
During which phase of mitosis do the centromeres split and chromatids move to opposite poles?
Which of the following organisms is correctly matched with its kingdom?
Which of the following is not a part of the human digestive system?
Which of the following is responsible for the transport of water in plants?
In a dihybrid cross AaBb × AaBb, what percentage of offspring will show at least one recessive trait?

Given below is the schematic representation of spermatogenesis in human males:

schematic representation of spermatogenesis in human males

Choose the option that shows the correct labelling of ‘I’, ‘II’, ‘III’ and ‘IV’ in the given diagram.

The plants showing: hypogynous flower, valvate aestivation, and tricarpellary ovary are:
In which group of algae are food materials stored in pyrenoids?
The number of ATP and NADPH molecules required respectively to synthesize one molecule of glucose in C\(_3\) plants is:
Which part of the human eye controls the amount of light entering it?
Which of the following statements about photosynthesis is correct?
Which gas is primarily responsible for the greenhouse effect?
Which plant hormone is responsible for apical dominance?
Which of the following would most likely occur in an ecosystem following the removal of a keystone species?
Which of the following statements is true regarding Mendel's law of independent assortment?
During DNA replication in eukaryotic cells, which of the following enzymes is responsible for removing RNA primers and filling the gaps with DNA nucleotides?
In the electron transport chain of mitochondria, the final electron acceptor is:
Which of the following best explains the Bohr effect in hemoglobin?
Which plant hormone is primarily responsible for initiating seed germination and breaking seed dormancy?
In which of the following pairs both plants exhibit epigynous flowers and axile placentation?
Which of the following plants shows both stem and root modifications for storage?
Introrse and extrorse anthers are found in the following plants respectively: