He correct method of removing a glass stopper is to grasp it

between the second and third finger

The correct method of removing a glass stopper is to grasp it between the second and third finger with the help of the thumb. If the glass stopper is stuck, you can use the tap method by using many gentle tap and keep on turning the flask. Another technique is to put oil or use a flame to expose it to heat.

the correct answer is phenotype

gametes or germ cells are haploid cells (example: sperm and ova) containing only one set (or n) number of chromosomes and autosomal or somatic cells are diploid cells containing 2n number of chromosomes.