Quiz 13-16

Question 1

The smallest unit of evolution is the ______.

Answer 1

Population

Question 2

If the frequency of a dominant allele is 0.7, what is the frequency of the recessive allele?

Answer 2

.30

Question 3

A reproductive barrier that prevents species from mating is an example of ______.

Answer 3

a pre-zygotic barrier

Question 4

A pattern of evolution in which most change in appearance takes place during a relatively short period of time with leaps or jumps fits the ______ model of speciation.

Answer 4

punctuated equilibrium

Question 5

Allopatric speciation is the result of ___________.

Answer 5

Geographic isolation

Question 6

Why is RNA thought to have been the first genetic material?

Answer 6

RNA is capable of self-replication; DNA is not.

Question 7

According to the theory of evolution, what was the first stage of the process that led to the abiotic origin of life?

Answer 7

abiotic synthesis of monomers, such as amino acids and nucleotides

Question 8

Which of the following organisms harvest energy from inorganic chemicals and use carbon dioxide for carbon?

Answer 8

Chemoautotrophs

Question 9

Which of the following is thought to have originated from endosymbiosis?

Answer 9

Both mitochondria and chloroplasts

Question 10

Fungi and animals are considered ________________.

Answer 10

Unikonts