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 termĀ 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

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