Question

It is a model organism used to study various cell and developmental processes such as the growth of developing body parts in the right place and with the correct shape. It develops from a fertilized egg to an adult in a little over a week, and has been a favorite of geneticists for almost a century. Some of its cells have giant chromosomes whose banding patterns have been extremely helpful in classical genetic studies. Which organism is it?

Answer 1

Answer:

Drosophila melanogaster

Explanation:

Drosophila melanogaster or fruit fly is a fly species used as a model organism by geneticists and developmental biologists which helped them awarded eight Nobel prizes.

The studies on the role of genes in developmental biology and the study of the chromosomes obtained from the salivary glands called polytene chromosomes are the topic of research in the Drosophila.

Thus, Drosophila melanogaster is the correct answer.

Answer 2

Answer:

Drospohila.

Explanation:

The model organisms may be defined as the organisms that are well suited for the study of the biological phenomena. The model organisms have some special characteristics that are not present in other organisms.

The qualites of the model organisms that describe in the question clearly signifies that this model organism is Drosophila. The growth pattern and correct body shape is first studied in the Drosophila. The salivay glans of Drosophila consists of giant chromosomes.

Thus, the answer is Drosophila.