Biology

Question

34 of 45

HIV is responsible for _____.

[removed]	PKU
[removed]	TB
[removed]	STD
[removed]	CPR
[removed]	AIDS

Question

35 of 45

Restriction enzymes __________.

[removed]	edit proteins
[removed]	cut DNA at specific sites
[removed]	stop transcription
[removed]	bind together strands of DNA
[removed]	bind RNA fragments together

Question

36 of 45

Gel electrophoresis sorts DNA molecules on the basis of their __________.

[removed]	nucleotide sequence
[removed]	solubility in water
[removed]	ability to bind to mRNA
[removed]	solubility in the gel
[removed]	size

Question

37 of 45

Which of the following areas of research will benefit from the human genome project?

[removed]	understanding human evolution
[removed]	understanding human embryonic development
[removed]	improving the diagnosis, treatment, and prevention of heart disease, cancer, and other common ailments
[removed]	All of the choices are correct.
[removed]	None of the choices are correct.

Question

38 of 45

Which of the following best defines the term transgenic animal?

[removed]	an animal that is the first of its kind to bear a particular allele
[removed]	an animal in which a genetic defect has been corrected using recombinant DNA therapy
[removed]	an animal containing a gene from a third “parent,” which may even be another species
[removed]	an animal containing genes from both its parents
[removed]	an animal containing genes from three or more species

Question

39 of 45

Genetic variation within a population is developed and maintained because of __________.

[removed]	random mutations
[removed]	recombination because of sexual reproduction
[removed]	crossing over
[removed]	All of the above
[removed]	None of these are valid ways of creating variation

Question

40 of 45

The prime goal of current work in genetic engineering is to __________.

[removed]	eliminate antibiotic resistance in bacteria
[removed]	isolate disease-causing plasmids in bacteria
[removed]	modify cells to correct a defect or produce a functional product
[removed]	transfer genes from viruses to other cells
[removed]	study only cancer and bring about a cure

Question

41 of 45

Viruses that infect bacteria are ______.

[removed]	retroviruses
[removed]	enveloped viruses
[removed]	emerging viruses
[removed]	proviruses
[removed]	bacteriophages

Question

42 of 45

Which of these can act as a vector to introduce new genes into a cell?

[removed]	humulin
[removed]	GM
[removed]	PCR
[removed]	clones
[removed]	plasmids

Question

43 of 45

Which of the following is a major category of animal tissue?

[removed]	epithelial
[removed]	plasma
[removed]	bone
[removed]	cardiac
[removed]	neurons

Question

44 of 45

Maintaining the volume and composition of body fluids is the direct responsibility of which of the following systems?

[removed]	integumentary
[removed]	immune
[removed]	digestive
[removed]	urinary
[removed]	respiratory

Question

45 of 45

Which of the following organs is NOT in the abdominal cavity?

[removed]	stomach
[removed]	liver
[removed]	intestine
[removed]	appendix
[removed]	heart

 

 

Part2

1 of 45

The basic structural and functional part of the kidney is the __________.

[removed]	Bowman’s capsule
[removed]	nephron
[removed]	glomerulus
[removed]	urinary bladder
[removed]	ascending aorta

Question

2 of 45

Which one of the following types of tissue stores fat in the body?

[removed]	blood
[removed]	cartilage
[removed]	bone
[removed]	adipose
[removed]	fibrous connective tissue

Question

3 of 45

Which of the following is true of a typical skeletal muscle?

[removed]	Contraction is involuntary.
[removed]	It is found in the walls of organs such as the digestive tract.
[removed]	Its fibers do not have a striped appearance under the microscope.
[removed]	It can be enlarged by exercise.
[removed]	It is only found in heart tissue.

Question

4 of 45

Which type of tissue forms a communication and coordination system within the body?

[removed]	nervous
[removed]	blood
[removed]	epithelial
[removed]	connective
[removed]	muscle

Question