Name ______________________		GSC 120    
 2/09/05    
 First Exam

I.	True or False (2 point each). Indicate whether the statement is (A) True or (B) False.

1)	Long hair must be pinned back or tucked in while working in lab.

2)	The number 0.0240 has two significant digits (or significant figures).

3)	The number 24.89 is more precise than the number 24.9.

4)	If detached ear lobes are dominant and you have attached ear lobes then both your biological parents will also have attached ear lobes.

5) 	The mass of 370cm3 of aluminum is about a kilogram.

6)	The density of a liquid depends on the shape of the container that holds it.

7)	Viruses can function and reproduce only inside a host cell.

8)	The only other living member of the genus Homo is the chimpanzee.

9)	Latin names are used for genus and species because of the confusion that arises when using local names.

10)	Boys inherit all X-linked (a.k.a. sex-linked) traits from their father.

II.	Multiple Choice (2 point each). Indicate which is the best response.

11)	Set cards are classified by ______, ______, ______, and ______.
	A. number symbol color roundness 	B. symbol color number shading
	C. suit rank shading color		D. color suit shading number
	E. <None of the above>
 
12)	Samantha convinces ______ people that science can answer their problems.
	A. 2		B. 3		C. 4		D. 6		E. <None of the above>

13)	_______________ are animal-like.
	A. bacteria		B. viruses
	C. fungi			D. parasites

14)	A light-year is about _____.
	A. 108m			B. 1016m
	C. 1024m			D. 1032m

15)	22 inches is ________.
	A. 559mm			B. 2.4ft
	C. 5.59cm			D. 1.6yds
	E. <None of the above>

16)	Chordata means _______________.
	A. carnivorous			B. having mammary glands
	C. having a tail		D. having a spinal cord
	E. <None of the above>

17)	In our activity pertaining to Bengal tigers, the pink candy represented the __________ allele while the white candy represented the ____________ allele.
	A. recessive   dominant 			B. dominant   recessive 
	C. heterozygous   homozygous		D. X   Y
	E. <None of the above>

18)  Which one of the following is not a fundamental property?
	a.  length		b.  weight
	c.  time			d.  mass

19)	Accuracy is a measure of  __________.
	a. repeatability	b. reliability
	c. respectability	d. readability
	e. <None of the above.>

20)	A nanometer is ____________.
	A. 10-9m			B. 10-6m
	C. 106m			D. 109m
	E. <None of the above>

21) 	Suppose a cube of jello is cut into two unequal pieces.  Which property is the same for both pieces?
	a.  mass			b.  volume
	c.  density		d.  surface area
	e. <None of the above>

22)	A sample of water has a mass of 3.5 gms. The sample’s volume must be ___________. 
	A. 3.5cm3			B. 7.0cm3		C. 0.29cm3		D. 1.3cm3
	E. <None of the above.>

23) 	Imagine a 10-gm chunk of aluminum (ρ=2.7gm/cm3) and a 10-gm chunk of iron (ρ=7.9gm/cm3).  Which of the following is true? 
	a. The chunk of iron is smaller than the chunk of aluminum.
	b. The chunk of iron is more massive than the chunk of aluminum.
	c. The chunk of aluminum is smaller than the chunk of iron. 
	d. Both objects have the same volume. 
	e. <None of the above.>

24) 	A 1-cm3 piece is removed from a very large lump of modeling clay with a volume of over 100,000cm3.  Which piece has the greatest density?
	a.  The small piece.		b.  The large piece.
	c.  They both have the same density.

25) 	What is the density of a 61.8-gm cube that is 2.3cm wide, 4.0cm tall, and 3.2cm long? 
	A. 6.5gm/cm3 		B. 2.1gm/cm3
	C. 0.48gm/cm3 		D. none of the above

26) 	Measurements in science are communicated by using 
	A. a numerical value.
	B. a unit.
	C. either a numerical value or a unit.
	D. both a numerical value and a unit.

27) 	A tentative explanation for a natural phenomenon is known as a scientific
	A. hypothesis.			B. law.
	C. observation.		D. model.
	E. <None of the above.>

28) 	A broad working hypothesis based on extensive experimental evidence that forms the framework of scientific thought is termed a scientific
	A. law.		B. model.
	C. idea.		D. theory. 
	E. <None of the above.>

29) 	The kingdom Animalia is thought to have evolved most recently from the kingdom 
	A. Prokaryotae.		B. Protista.
	C. Mycetae.			D. Plantae.
	E. <None of the above.>

30) 	Which of the following taxonomic groups is the most inclusive?
 	A. class			B. genus 
	C. family 		D. order
	
31) 	The binomial system of naming assigns ____ names to each type of organism.
	a. one 		 b. two		 c. four		 d. many

32)	The person who developed the system for naming organisms that is currently used was
	a.  Oparin.		b.  Aristotle.
	c.  Linnaeus.		d.  Pasteur.
e. <None of the above>

33)	The subdivision of a kingdom is
A. phylum				B. family
C. genus				D. order
E. <None of the above>

34)  The taxonomic subdivisions from largest to smallest are
	a. kingdom, phylum, class, order, family, genus, species.
	b. kingdom, class, phylum, order, genus, family, species.
	c. kingdom, phylum, order, class, family, genus, species.
	d. kingdom, order, class, phylum, genus, family, species.

35)  Algae are in the kingdom
	a. Prokaryotae.	b. Animalia.
	c. Mycetae.		d. Protista.
	e. <None of the above.>

36)	Two parents have genotypes of AaBb and AAbb. What is the probability of an offspring having the Aabb genotype?
A. 0			B. 1/8
C. 1/4		D. 1/2
E. 100%

37)	Two parents have genotypes of AaBb and AAbb. What is the probability of an offspring having the Ab phenotype?
A. 0			B. 1/8
C. 1/4		D. 1/2
E. 100%

38)  The Y chromosome in humans is in the ____________ cell.
	a.  egg			b.  egg or sperm
	c.  gamete		d.  sperm
	e. <None of the above.>

39)	A woman with blood type O and a man with blood type A have a child. What are the possible genotypes of the offspring?
A. AO and OO			B. AA, AO, and OO
C. AO and AA			D. AO only
E. AO and BO

40)	If a boy is color-deficient and his mother is also color-deficient then boy’s father ______________.
A. must be color-deficient			B. must be healthy
C. could be color-deficient or healthy	D. is a carrier
E. <None of the above>

41) 	If a sperm containing an X chromosome fertilizes an egg, the child will be
	a.  a girl.				b.  a boy.
	c.  twins, a boy and a girl.	d.  twin boys.

42)  Different forms of the same gene are referred to as
	a. loci.			b. alleles.
	c. homozygotes.	d. hybrids.
	e. heterozygotes.