NBDE part 1 problem

[spsbs]

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1.most rediosenstive cell?
a neurons
b fibroblast
c lymphocyte
d chondrocyte
e epithelial
2.which pathogen is the single most common cause of sexually transmitted disease in u.s?
a trepanoma palladium
b haemophilus ducreyi
c chlamydia trachomatis
d herpes simplex
e HIV
3.which of the is the most common location for an atherosclerotic induced aneurysm?
a thoracic aorta
b abdominal aorta
c coronary arteries
d arch of the aorta
e common iliac arteries
4.if anticodon on transfer RNA is 5'ACG3'then which of the following is its corresponding codon on messenger RNA?
a 5'CGT3'
b 5'CGU3'
c 5'TGC3'
d 5'UAG3'
e 5'UGC3'

plz answer them with explanation
thanks.

 

[make you smile]

1.most rediosenstive cell?
a neurons
b fibroblast
c lymphocyte--answer--high turn over rate
d chondrocyte
e epithelial
2.which pathogen is the single most common cause of sexually transmitted disease in u.s?
a trepanoma palladium
b haemophilus ducreyi
c chlamydia trachomatis--answer
d herpes simplex
e HIV
3.which of the is the most common location for an atherosclerotic induced aneurysm?
a thoracic aorta
b abdominal aorta--answer
c coronary arteries
d arch of the aorta
e common iliac arteries
4.if anticodon on transfer RNA is 5'ACG3'then which of the following is its corresponding codon on messenger RNA?
a 5'CGT3'
b 5'CGU3'--answer--anti-parallel;uracil in place of thymine in RNA
c 5'TGC3'
d 5'UAG3'
e 5'UGC3'

Oh, what was I thinking when I said neurons?They dont divide,do they?Thanks for correcting me,toothfairy21.

 

[toothfairy21]

1.most rediosenstive cell?
a neurons
b fibroblast
c lymphocyte
d chondrocyte

ans is lymphocyte ... as it is the one the high turn over rate

High Radiosensitivity
​

Lymphoid organs, bone marrow, blood, testes, ovaries, intestines

Fairly High Radiosensitivity​

Skin and other organs with epithelial cell lining (cornea, oral cavity, esophagus, rectum, bladder, vagina, uterine cervix, ureters)

Moderate Radiosensitivity​

Optic lens, stomach, growing cartilage, fine vasculature, growing bone

Fairly Low Radiosensitivity​

Mature cartilage or bones, salivary glands, respiratory organs, kidneys, liver, pancreas, thyroid, adrenal and pituitary glands​

Low Radiosensitivity ​

Muscle, brain, spinal cord

 

[toothfairy21]

all the other questions i agree with the answers

 

[spsbs]

Thanks a lot.you guys really helped me.i was confused with question 4 & 1.but you guys explained it well.so now no confusion.rest 2 answer i just wanna conform.