PRETEST/ POST TEST MECHANISMS OF EVOLUTION

An organism was exposed to gamma radiation. With this, it was able to change its genetic traits. Which of the following explains this?

• genetic flow

• genetic drift

• mutation

• natural selection

Tags

NGSS.HS-LS3-2

Which of the following correctly explains the phrase “survival of the fittest”?

• Any organism can survive as long as they belong to a large population.

• Any organism can survive as long as they belong to a small population.

• The organisms which can stand any environmental stress can survive.

• The organisms which are fit in the environment can survive.

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

Which of the following is a major contributory in the conduct of genetic flow, genetic drift, and mutation?

• Allele

• Cell

• Mitochondria

• Nucleus

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

Which of the following correctly differentiates the Bottleneck effect from Founder Effect?

• Bottleneck effect involves sudden decline of population size while founder effect involves the start of a new population on a new location.

• Bottleneck effect results in high diversity of organisms while founder effect results in low diversity of organisms.

• Bottleneck effect does not involve the passing of genes from one organism to another while for fountain effect, they do.

• All of the above

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-5

A bird migrated to another location and interbred with other birds in the area. As a result, the offspring acquired some traits from the migrating bird. Which of the following describes this?

• gene flow

• genetic drift

• mutation

• natural selection

Tags

NGSS.HS-LS4-2

Why is genetic drift sometimes disadvantageous?

• Genetic drift can result in limited diversity in a population.

• Organisms in a population can survive in their environment.

• Organisms developed changed traits affecting their survival.

• Both B and C

Why does mutation occur?

• due to exposure to chemicals

• DNA fails to copy

• due to exposure to radiation

• All of the above

Tags

NGSS.HS-LS3-2

The organisms who can survive in their environment despite the present danger and stress is considered as fit. What mechanism of evolution describes this?

• gene flow

• genetic drift

• mutation

• natural selection

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

Which parameter is necessary in order for genetic drift to occur?

• The population must be large.

• The population must be small

• The population must be under environmental stress.

• The population should have an equal number of organisms.

How is mutation helpful in our society?

• It can help in the preservation of endangered organisms.

• It contributes to the formation of cancer tumors for medicinal studies.

• It can make sure that a new form of life is present in the society.

• Both B and C

Tags

NGSS.HS-LS4-2