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Principles of Genetics: Model Organisms in Genetics Lab

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Questions and Answers

What is the approximate duration of the life cycle of Drosophila melanogaster?

Six weeks
Four weeks
One week
Two weeks (correct)

Why is Drosophila melanogaster considered an ideal organism for culturing?

It is difficult to house large numbers
It is easy to culture and inexpensive to house large numbers (correct)
It is very expensive to maintain
It has a very long life cycle

What can be observed with the naked eye or under low-power magnification in Drosophila melanogaster?

Only its behavior
Only its molecular structure
Many of its attributes (correct)
Only its genetic mutations

What is a characteristic of the life cycle of male and female Drosophila melanogaster?

It is different for both (B) Signup and view all the answers

What is an example of a mutation that can be observed in Drosophila melanogaster?

Vestigial wing (D) Signup and view all the answers

What is a key characteristic of model organisms that enables them to advance our understanding of cellular function and disease?

Their ability to be extensively studied in research laboratories (A) Signup and view all the answers

Which of the following is NOT a condition needed for choosing a model organism?

Ability to undergo metamorphosis (B) Signup and view all the answers

What is a characteristic of Escherichia coli that makes it a popular model organism?

Its rapid reproduction rate (A) Signup and view all the answers

What is a key advantage of using Arabidopsis thaliana as a model organism?

Its ability to be manipulated through genetic engineering (C) Signup and view all the answers

What is a characteristic of Caenorhabditis elegans that makes it a popular model organism?

Its short life cycle and transparency (B) Signup and view all the answers

What is the purpose of choosing a model organism in genetics?

To apply new knowledge to other organisms (D) Signup and view all the answers

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