Question 1

Which of the following scientists suggested that RNA may have been the first informational molecule?

Accepted Answer

A)  Crick and Orgel 
B)  Crick and Watson 
C)  Crick and Chargaff 
D)  Watson and Orgel 
E)  Watson and Chargaff 
A)  Crick and Orgel 
B)  Crick and Watson 
C)  Crick and Chargaff 
D)  Watson and Orgel 
E)  Watson and Chargaff

Question 2

Eukaryotes are closer genetically to bacteria in the process of

Accepted Answer

A)  DNA replication 
B)  RNA transcription 
C)  RNA translation 
D)  membrane formation. 
E)  more than one of these. 
A)  DNA replication 
B)  RNA transcription 
C)  RNA translation 
D)  membrane formation. 
E)  more than one of these.

Question 3

Dinoflagellates

Accepted Answer

A)  may produce bioluminescent tides that poison and kill fish. 
B)  are parasites of fish and invertebrates. 
C)  may undergo a population explosion that colors the ocean. 
D)  are aquatic producers in freshwater or marine habitats. 
E)  have all of these characteristics. 
A)  may produce bioluminescent tides that poison and kill fish. 
B)  are parasites of fish and invertebrates. 
C)  may undergo a population explosion that colors the ocean. 
D)  are aquatic producers in freshwater or marine habitats. 
E)  have all of these characteristics.

Question 4

Bacteria can exchange genes with other bacteria by a method called

Accepted Answer

A)  binary fission. 
B)  meiotic recombination. 
C)  conjugation. 
D)  translation. 
E)  compilation. 
A)  binary fission. 
B)  meiotic recombination. 
C)  conjugation. 
D)  translation. 
E)  compilation.

Question 5

Algins,compounds used in the food industry,are obtained from

Accepted Answer

A)  foraminiferans. 
B)  brown algae. 
C)  dinoflagellates. 
D)  red algae. 
E)  green algae. 
A)  foraminiferans. 
B)  brown algae. 
C)  dinoflagellates. 
D)  red algae. 
E)  green algae.

Question 6

What is it hypothesized that the earliest known cells used for producing energy?

Accepted Answer

A)  iron oxide 
B)  oxygen gas 
C)  carbon dioxide 
D)  water vapor 
E)  iron sulfide 
A)  iron oxide 
B)  oxygen gas 
C)  carbon dioxide 
D)  water vapor 
E)  iron sulfide

Question 7

What is an effect of SIV on infected chimpanzees in the wild?

Accepted Answer

A)  they are unaffected 
B)  they leave fewer offspring 
C)  they develop AIDS 
D)  they become more fit 
E)  more than one of these is an effect of SIV 
A)  they are unaffected 
B)  they leave fewer offspring 
C)  they develop AIDS 
D)  they become more fit 
E)  more than one of these is an effect of SIV

Which of the following scientists suggested that RNA may have been the first informational molecule?

Eukaryotes are closer genetically to bacteria in the process of

Dinoflagellates

Bacteria can exchange genes with other bacteria by a method called

Algins,compounds used in the food industry,are obtained from

What is it hypothesized that the earliest known cells used for producing energy?

What is an effect of SIV on infected chimpanzees in the wild?

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Capturing and Releasing Energy

DNA Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

Filters

Exam 13: Early Life Forms and the Viruses

Which of the following scientists suggested that RNA may have been the first informational molecule?

Eukaryotes are closer genetically to bacteria in the process of

Dinoflagellates

Bacteria can exchange genes with other bacteria by a method called

Algins,compounds used in the food industry,are obtained from

What is it hypothesized that the earliest known cells used for producing energy?

What is an effect of SIV on infected chimpanzees in the wild?

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Capturing and Releasing Energy

DNA Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

Filters