Top 1000+ Solved Biology (GK) MCQ Questions Answer
Q. Coupling and repulsion are the two states of –
a. linkage
b. chiasma
c. mutation
d. crossing over
Q. Stamens are fused with each other by their anthers and also with the petals in
a. Leguminosae
b. Liliaceae
c. Compositae
d. Euphorbiaceae
Q. In the human body, which of the following organs is responsible for water balance?
a. Heart
b. Liver
c. Kidneys
d. Lungs
Q. The beetroot is the portion of the beet plant -
a. tap root
b. adventitious
c. bulb of the stem
d. rhizome
Q. Natural system of classification was proposed by botanists.
a. Indian
b. German
c. Swedish
d. British
Q. Microbial degradation of nitrates into atmospheric nitrogen is known as-
a. Ammonification
b. Nitrification
c. Denitrification
d. Putrefaction
Q. Study of organisms in relation to their environment is called –
a. Ecology
b. Zoology
c. Entomology
d. Paiynology
Q. Red rot of sugarcane is caused by –
a. Alternaria altemata
b. Phylophthora infestans
c. Colletotrichurn falcatum
d. Cercospora personata