From where (or who) do lion cubs get their chromosomes? How does this happen to produce the pattern you see in the karyotype?

From their lion parents (male and female)

Explanation:

Lions are diploid organisms (2n), which means they have two sets of chromosomes. One set of chromosome is contributed by their MALE parent while the other set is contributed by their FEMALE parent. Therefore, a lion cub (young lion) derives its chromosomes from the equal contribution of each of its parent.

A karyotype is a pictorial representation of an organism's chromosomes, showing the arrangement, shape, number etc. A lion is found to possess 38 chromosomes in its diploid cell. This means that 19 chromosomes each was contributed by both lion (male) and lioness (female). Each chromosome type from each parent forms a pair known as HOMOLOGOUS CHROMOSOME, which is why the lion is referred to as DIPLOID.

i have to report this, it doesn't relate to biology