In a classic experiment using pea shape, mendel conducted two separate genetic crosses. in the first cross the parent plants
were true breeding" for pea shape; one had round peas ( r )and the other had wrinkled (1). the first cross produced a filial 1
generation of all round peas. in the second cross, mendel bred plants from the filial 1 generation. this cross produced different
results. out of approximately 1000 plants, about 75% were round and 25% were wrinkled.
from these experiments, mendel developed four hypotheses. they include all but
one heritable factor may be dominant and mask the other factor
any organism that shows a heritable factor must be homozygous.
an organism has two "heritable factors", now called genes, one from each
parent
perm or egg carries only one heritable factor for each trait in the
offspring

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

the answer is 12 as i may remember

: )