Question

What are the environmental factors that affect male/femaledetermination

Answer 1

The environmental factors affecting male/female determination are:

1. Temperature: The temperature experienced during embryonic development determines maleness/ femaleness. This is what happens in case of reptiles like turtles and crocodiles. If turtle eggs are incubated below 28^oC then they will be males and if reared above 30^oC then all eggs will produce females.
2. Location: In certain worms like Bonellia sex is determined by where the larva settles. If larva happens to settle on ocean floor then it will develop into a female and if attracted to a female proboscis then it develops into a minute male.