What is the definition of gene cloning?

Transgenic plants are plants in which one or more genes from another species have been introduced into the genome, using genetic engineering. Some have been modified to resist pests. But corn is a variant of maize that expresses Cry protein from the bacterium Bacillus thuringiensis. This protein is poisonous to certain insects.

Suggest one reason mRNA was not detected in plant 3.

Represent the union of two sets by Venn diagram for each of the following.

$X=\{x | x$ is a prime number between $80$ and $100\}$

$Y=\{y | y$ is an odd number between $90$ and $100\}$