Select the correct statements. a. Intine of pollen grains is composed of pectocellulosic in nature. b. Pollen grains develop from the haploid microspore mother cells in pollen sacs of anther. c. Pollen grain is diploid, unicellular, multinucleate and oval shaped structure. d. Pollen grains are generally spherical measuring about 25-50 mm in diameter.

Question

Select the correct statements. a. Intine of pollen grains is composed of pectocellulosic in nature. b. Pollen grains develop from the haploid microspore mother cells in pollen sacs of anther. c. Pollen grain is diploid, unicellular, multinucleate and oval shaped structure. d. Pollen grains are generally spherical measuring about 25-50 mm in diameter. (A) only b is correct (B) a, b, c are correct (C) only a is correct (D) only d is wrong

Tardigrade Admin · Accepted Answer

Pollen grains develop from the diploid microspore mother cells in pollen sacs of anther. Pollen grain is haploid, unicellular, uninucleate and oval shaped structure. Pollen grains are generally spherical measuring about 25-50 micrometers in diameter. Pollen grain is a double layered sporoderm - outer exine and inner intine. The inner intine is thin, delicate and is made of cellulose and pectose.