Question

Identify the true statement. a. DNA from insects preserved in amber is not enough to clone extinct species as depicted in Jurassic Park. b. Feathers and fur do not fossilize, because they are not hard parts. c. Delicate features like ears and wings are never fossilized. d. We have no fossil information about invertebrates without shells

Answer 1

Answer: The true statement is option A (DNA from insects preserved in amber is not enough to clone extinct species as depicted in Jurassic Park).

Explanation:

Jurassic park is a blockbuster movie that was produced in 1993. The movie portrayed the idea of extracting DNA from the belly of a mosquito that fed on the blood of dinosaurs that has been preserved in amber for decades. But DNA from insects preserved in amber is not enough to clone extinct species as depicted in this movie because:

--> There is high chances of the blood being contaminated by the DNA of the insect as it is surrounded by it and from other cells traped in the amber too.

--> Many insects decay from the inside out after they're trapped, leaving nothing inside for scientists to try to extract.

--> Most insect fossils found in amber are also too young to contain dinosaur blood since dinosaurs were extinct by the time the insects became trapped.

Note that DNA is the part of the cell that contains hereditary materials of the organism.

Fossilisation is the process of preserving remains of these organism in a hard, petrified form like ambers.