48. On Denny\'s EKG, the ventricular contraction is reflected as the a) QRS comp
ID: 3520605 • Letter: 4
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48. On Denny's EKG, the ventricular contraction is reflected as the a) QRS complex b) p wave d) none of above c) t wave s prescribed a Beta-1 blocker,it would inhibit the effect of the following neurotransmitter d) none of above 49. If Denny c) both a & b NE b) Ach Consider the following information for #50-54 A AG C TC A DNA segment has this nucleotide sequence 50. Which mRNA is a compliment of the sequence? e) none of above c)UUCGAU d) AACGUG a)AAGCAC b)UUCUAG 51. How many amino acids will be coded in this segment from the DNA sequence? a) 6 d) 2 e) 1 52. What is the tRNA sequence for the 2d codon from the DNA sequence above? e) none of above a) GUG 53. What is the DNA compliment of the following sequence? 54. How many codons are on the mRNA sequence from the DNA sequence above? Match the following with the appropriate valve: b) uuc c) GUU b) UUCGAG c) TTGCTA d) TTCGAG e) none of above b)3 e) none of above a) tricuspid b) mitral c) aortic d) pulmonary e) none of above 55. prevents backflow(return of blood) into the left atrium 56. prevents backflow into the right atrium 57. prevents backflow into the left ventricle 58. prevents backflow into the right ventricle 59) A chemotherapy drug destroys actively dividing cell. Which epidermal layer would this affect? a) lucidum b) spinosum c) germinativum d) corneum e) none of above 60) The process when cells ingest debris and waste for destruction is called a) osmosis b) pinocytosis c) diffusion d) phagocytosis e) none of above 61) The organelle that is the major part of adenosine tri-phosphate synthesis a) hysosomes b) mitochondria c)golgi complex d) endoplasmic reticulum 62) DNA is converted to RNA by a process calledwhich occurs in the a) translation, nucleus c) translation, cytoplasm b) transcription, nucleus d) transcription, cytoplasm e) none of above 63) Joi ate lunch earlier. In order for her body to utilize the food for fuel, it has to go through the process of a) differentiation b) catabolism c) endocytosis d) phagocytosis e) anabolism 64) The langerhan cell is a specialized a) melanocyte b) nerve cell c epithelial cell phagooyte e) all of the above 65) A needle would pierce the epidermal layers of the forearm in which order from superficial to deep: a) germinativum b) spinosum c) lucidum d) corneum a) abdc b) bcda c) abdc d) none of the aboveExplanation / Answer
48) the answer is QRS complex.
In a EKG,
P wave gives atrial depolarization.
QRS comples gives ventricular depolarization.
T wave gives ventricular repolarization.
49)The answer is NE(norepinephrine).
Beta-1 blocker acts as inhibitora for beta 1 receptors.which
i)cardiac stimulation
ii)promote RENIN release.
These are activated when epinephrine or norepinephrine is acted upon them.so beta 1blockers inhibit their action.
50)Answer is none of above.
mRNA compliment for AAG CTC is
UUC GAG.
as in RNA sequence the thymidine(T)group is replaced with uracil group(U).
51)No. Of aminoacids coded from given DNA sequence is 2 as there are 2 codons are present in the sequence for mRNA.
So the answer is 2.
52)the answer is none of the above.
From give above the mRNA sequence is UUC GAG.
GAG is the 2nd codon sequence for the DNA given.
So the tRNA for it will be in the form of anti codon which carries it to Ribosomes will be CUC.
53) The DNA compliment would be simple as the Thymidine group is not changes so DNA compliment for AAG CTC will be TTC GAG.
54) the answer is 2.
The three NUCLEOTIDES comprises a codon so for the given sequence the m RNA has 2 codons.
61) mitochondria is the main organelle in ATP production as it has F0-F1 particle or ATPsynthase which are responsible for ATP production.
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