What are animals called whose $DNA$ has been manipulated to possess and express an extra (foreign) gene?

'Rosie' cow is known to produce a type of milk which has all the following characteristics:
$I.$ Protein content of $2.4 \ g/L$.
$II.$ Human Alpha-lactalbumin.
$III.$ More nutritionally balanced for human babies than natural cow milk.
Which of the above statements are correct?

What is the difference between the two mice as shown in the figure?

In a process where a somatic cell nucleus from a donor is transferred into an enucleated egg cell to produce an organism,which of the following statements is correct?

Which of the following animals are the most common transgenic animals?

Which transgenic animals have been created by scientists in the highest numbers?