21) Who coined the term gene—— W.L. Johannsen
22) Which type of acid is found in an ant— Formic acid
23) Who propounded the Laws of heredity— Mendel
24) What determines the sex of a foetus—-Sperm of father
25) Who propounded the law of heredity–-Mendel
26) What is the floral part that produces pollen grains– Anther
27) By means of which Ferns reproduce—- By means of spores
28) By which method does the pollination of maize take place—Pollination by air
29) How are the pollen grains of flowers pollinated by insects—Rough and sticky
30) What is called the floral part that receives pollen grains during pollination—Stigma
