List of top Biology Questions

Animals are classified into hierarchical groups. In which one of the following, the largest number of species is found?
Homo erectus evolved during
In spermatogenesis, reduction division of chromosome occurs during conversion of
The carcinoma, a type of cancer, originates from
The important gas which was absent during the formation of Earth is
Which one of the following poultry birds is not an english breed?
The correct sequence of different phases of cell cycle is
Which one of the following life cycle stages of malarial parasite is responsible for relapse of malarial symptoms?
Which one of the following life cycle stages of Wuchereria bancrofti is infective to man?
A man having the genotype $EEFfGgHH$ can produce $P$ number of genetically different sperms, and a woman of genotype $liLLMmNn$ can generate $Q$ number of genetically different eggs. Determine the values of $P$ and $Q$.
Petiole part of the leaf is known as
Angle of divergence in tristichous phyllotaxy is
The condition of fused anthers and free filaments is
Which of the following is the ultimate source of energy in an ecosystem?
Which one of the following is a breed of cattle?
Yeast cell can progress through the cell cycle in about
Which of the following belongs to the class- Gastropoda?
Which of the following animals is a reptile?
When placenta forms a ridge along the ventral suture of the ovary and the ovules are borne on this ridge forming two rows, the placentation is termed as
When margin of thalamus grows upward enclosing ovary completely and getting fused with it and the other parts of flower arise above the ovary, the flower is said to be
When fats are respiratory substrate, the value of $R.Q$. would be about
What is the site of fertilization in mammals?
The type of pollination when different pollen grains are brought to stigma is
The portion of embryonal axis above cotyledon is called as
The origin of mammal like reptiles occurred in