An anal fin is the single fin under the fishes tummy towards the tail end. The male platty has a pointed anal fin (this is called a gonopodium and performs like a penis) the female has a triangular anal fin.
No the color of the duck does not determine the sex of the duck.
Yes.
Samples of DNA can be taken from feces to determine the sex.
the answer is sex chromosomes
Gametes carry genes that determine the sex of an offspring.
98
They are colour variations of the same species and will breed with one another with no problems.
i what to get some platies , guppies and mollies but how many can i fit a 40 litre tank
Hungry
yes
sex chromosome
The Sex chromosomes