Autosomal traits would show Mendelian inheritance pattern but sex-linked traits would show criss cross inheritance.
Sex-linked trait is often controlled by gene present only on X chromosome, hence no corresponding allele is present on Y chromosome.
Answer:
<u><em>The necessary condition are the following:</em></u>
1) One should have enough money to buy the food.
2) One should have enough crops.
3) The distribution of food must be equal.
4) The economy should be high
5) The management should be proper.
6) There should be no discrimination of people in providing food.
