Unit 7 Lesson 9: The Map is Not the Territory

Question 1

What can a scientifc model represent

Answer 1

A scientific model can represent an idea, an object, or even a process or system.

Question 2

What does scientifc model describe and explain

Answer 2

It usually describes and explains any phenomena that cannot be or is not easy to experience directly. Models are used by scientists to further their research and communicate their results and explanations.

Question 3

what are cells that contain more than two sets of chromosomes called

Answer 3

Polyploid cells are cells that contain more than two sets of chromosomes.

Question 4

what are cells that contain 3 sets of chromosomes called

Answer 4

Cells with three sets are called triploid,

Question 5

what are cells that contain 4 sets of chromosomes called

Answer 5

those with four are tetraploid, and so forth.

Question 6

Some plants, such as bananas, are naturally polyploid. How do these undergo mitoti and reproduce

Answer 6

olyploid plants undergo mitosis and reproduce much in the same fashion as diploids.

Question 7

Gene redundancy

Answer 7

Gene redundancy, multiple genes in an organism that perform the same function, is a known genetic failsafe against harmful mutations.

Question 8

. Having multiple copies of the same genes is like having multiple backup copies of a big project. Elaborate

Answer 8

. If one file becomes corrupted or lost (mutated or spliced) there are other copies available to work from.

Question 9

Polyploidy in plant species has some evolutionary advantages compared to diploids. Elabotare

Answer 9

This evolutionary advantage makes polyploidal plants popular subjects for agricultural improvement.