Question 1

The abundant presence of ammonite fossils in a large area indicates that the area was once part of an ocean.

Accepted Answer

A) True 
 B)False

Question 2

The half life of 14C is 5,730 years.11,460 years after an organism dies what percent of the initial 14C will still be present in the organism bones?

Accepted Answer

A)  50%
B)  25%
C)  75%
D)  100%
E)  0%F) None of the above
G) C) and D)

Question 3

In a fruit fly embryo,the homeotic gene Antp determines where legs grow.When the promoter of Antp is mutated,flies grow legs from their head instead of antennae.In this mutation

Accepted Answer

A)  Antp must be turned off in the body.
B)  the Antp protein is no longer functional.
C)  antennae grow where the legs would normally be found.
D)  Antp must be turned on in the heaD.
E)  Antp is turned off in the head.F) B) and E)
G) B) and D)

Question 4

What structures were examined between species of snakes?

Accepted Answer

A)  analogous
B)  convergent
C)  homologous
D)  vestigial
E)  homeoticF) B) and E)
G) C) and D)

Question 5

If an isotope's half-life is 100 years,then

Accepted Answer

A)  that isotope will no longer exist in 50 years.
B)  that isotope will no longer exist in 200 years.
C)  in 50 years only half of the atoms in a sample of that isotope will remain.
D)  in 100 years only half of the atoms in a sample of that isotope will remain.
E)  in 200 years only half of the atoms in a sample of that isotope will remainF) A) and B)
G) A) and E)

Question 6

Carbon-14 is useful in determining the age of a fossil up to about

Accepted Answer

A)  40,000 years ago.
B)  10,000 years ago.
C)  20,000 years ago.
D)  50,000 years ago.
E)  100,000 years ago.F) A) and E)
G) A) and C)

Question 7

The techniques used to study molecular evolution are based on the comparison of nucleotide and amino acid sequences among species.

Accepted Answer

A) True 
 B)False

Question 8

The wings of a bat and an insect are examples of

Accepted Answer

A)  analogous structures.
B)  homologous structures.
C)  vestigial structures.
D)  homeotic structures.
E)  heterologous structures.F) A) and C)
G) All of the above

Question 9

What can be used as a molecular clock to estimate the time since organisms diverged from a common ancestor?

Accepted Answer

A)  DNA
B)  all types of RNA
C)  only ribosomal RNA (rRN
A)  
D)  ATP
E)  All answers are correct.F) D) and E)
G) None of the above

Exam 13: Evidence of Evolution

The half life of ¹⁴C is 5,730 years.11,460 years after an organism dies what percent of the initial ¹⁴C will still be present in the organism bones?

Correct Answer
verified

What structures were examined between species of snakes?

Correct Answer
verified

Carbon-14 is useful in determining the age of a fossil up to about

Correct Answer
verified

In a fruit fly embryo,the homeotic gene Antp determines where legs grow.When the promoter of Antp is mutated,flies grow legs from their head instead of antennae.In this mutation

Correct Answer
verified

The wings of a bat and an insect are examples of

Correct Answer
verified

If an isotope's half-life is 100 years,then

Correct Answer
verified

What can be used as a molecular clock to estimate the time since organisms diverged from a common ancestor?

Correct Answer
verified

The techniques used to study molecular evolution are based on the comparison of nucleotide and amino acid sequences among species.

Correct Answer
verified

The abundant presence of ammonite fossils in a large area indicates that the area was once part of an ocean.

Correct Answer
verified

Exam 13: Evidence of Evolution

The half life of 14C is 5,730 years.11,460 years after an organism dies what percent of the initial 14C will still be present in the organism bones?

Correct AnswerverifiedShow Answer

What structures were examined between species of snakes?

Correct AnswerverifiedShow Answer

Carbon-14 is useful in determining the age of a fossil up to about

Correct AnswerverifiedShow Answer

In a fruit fly embryo,the homeotic gene Antp determines where legs grow.When the promoter of Antp is mutated,flies grow legs from their head instead of antennae.In this mutation

Correct AnswerverifiedShow Answer

The wings of a bat and an insect are examples of

Correct AnswerverifiedShow Answer

If an isotope's half-life is 100 years,then

Correct AnswerverifiedShow Answer

What can be used as a molecular clock to estimate the time since organisms diverged from a common ancestor?

Correct AnswerverifiedShow Answer

The techniques used to study molecular evolution are based on the comparison of nucleotide and amino acid sequences among species.

Correct AnswerverifiedShow Answer

The abundant presence of ammonite fossils in a large area indicates that the area was once part of an ocean.

Correct AnswerverifiedShow Answer

The half life of ¹⁴C is 5,730 years.11,460 years after an organism dies what percent of the initial ¹⁴C will still be present in the organism bones?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified