In a living organism, at which stage does segregation of gene pairs takes place?

a.
ovulation
b.
gamete formation
c.
fertilization

Gamete formation.

Explanation:

During meiosis, even if the cell is divided into four different cells, the DNA is only copied/replicated once. The formation of gamete segregates gene pairs among the new cells.

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex