McGraw Hill Chapter 1

The observation, identification, experimental investigation, and theoretical explanation of natural phenomenon can be defined as

Science

To explore scientific principles that apply more broadly to other species, biologists often study _____________ organisms.

Model / Similar

A proposed explanation for a natural phenomenon is called a scientific

Hypothesis

What type of analysis can be used to determine if significant differences exist between control and experimental groups?

Statistical analysis

A theory can be proven to be true if enough experimentation is done. True or False?

False

What is the difference between discovery-based science and hypothesis testing?

Whether data are collected and analyzed under a pre-formed hypothesis

Which of the following is the best example of discovery-based science?

sequencing of the human genome

What is horizontal gene transfer?

The transfer of genetic material from one organism to another organism that is not its offspring.

Which of the following diseases causes a build up of mucus in the lungs and pancreatic ducts to the small intestine

cystic fibrosis

The CFTR gene is associated with cystic fibrosis. Cells with mutations in this gene are defective in their ability to

Export Chloride Ions

How do scientists determine whether the results of an experiment differ between an experimental group and a control group?

They analyze the data with statistics.

What is the main goal of data analysis in hypothesis testing ?

To draw conclusions from the experimental data

In hypothesis testing what is the role of statistical analysis?

To determine if differences between control and experimental groups are statistically significant

How does a theory differ from a hypothesis ?

A theory is supported by a large body of evidence

Discovery-based science often leads to hypothesis testing , true or false

True

The difference between the normal CFTR gene and the mutated CFTR gene (which causes cystic fibrosis) is that the normal gene encodes a transporter that ___________ and the mutated gene encodes a defective transporter that ______________.

transports chloride out of the cell; does not transport chloride efficiently

What is discovery-based science ?

An exploratory approach that involves observing and collecting data without a predefined hypothesis

Which process is described as the transfer of genetic material from one organism to another that is not its offspring?

Horizontal gene transfer

An ecosystem is : places on earth where organisms live . True or False ?

False

A biosphere is : a river and the organisms that live in it. True or False

False

A ecosystem is : a river and the organisms that live in it. True or False

True

A biosphere is : places on earth where organisms live. True or False

True

All valid scientific discoveries are the result of the scientific method. True or False ?

False

What role do volatile organic molecules play in plant communication?

They worn other plants of herbivore attacks

Discovery based science may lead to the formation of new _____________ that can be tested

Hypotheses

In the taxonomic hierarchy the broadest classification is __________________

Domains

What term refers to the study of the function of structures in plants and animals?

Physiology

Researchers design and conduct experiments in order to test ___________

predictions

Based on various kinds of data as scientist hypothesis, that the function of the normal CFTR G is to code a ___________ protein

Transport

What is the primary objective of discovery based science?

To gather information that may lead to the formation of new hypotheses

What type of protein does the CFTR gene encode?

Transport protein