[生醫] [分生]清大94分生
有點多.....
1. Which of the following statement in recombination is true?
A. Ruv A responses for resolution of Holliday junction when
RuvB presents.
B. Branch migration is essential for efficient resolution of
Holliday junction.
C. The mechanism of strand exchange catalyzed by lambda phage
---integrase is the same as that of homologous recombination.
D. Meiotic recombination in yeast begins with a single-strand break.
Spoll collaborates to creat cleavage .
經過刪去法,答案是B嗎?
9. Which of the following statements in "functional genomics" is true?
A. One approach to functional genomics is to create DNA microarrays or
DNA microchips
B. Functional genomics is the study if expression of all proteins in
an organism.
C. DNA microarray contains thousands of cDNAs or oligonucleotides,
respectively,then it can hybridize protein probe(s) from cells
before and after certain treatment.
D. One approach to functional genomics is to create protein microarrays.
是A嗎? 不太了解functional genomics 是捨麼
12. Which of the following permits expression of delayed early genes of
λphage?
A. N B. Q
C. Cro D. Cl
答案是C ?
18. TBF can not bind itself to TATA-less promoters with CG box.Which of the
following is required to anchor TBP and SP1 to the GC box?
A. TAFⅡ250, TAFⅡ50, TAFⅡ110
B. AFⅡ250, TAFⅡ50
C. TFⅡA
D. TFⅡB
I Have no idea!!
19. Which of the following snRNA recognizes 5'splicing signal during splicing
of intron?
A. U1
B. U2
C. U4/U6
D. U5
應該是C吧? 來確定一下
20. Which of the following is involved in polyadenylation of mRNA ?
A. CF1
B. Guide RNA
C. Acetylase
D. Deacetylase
小小肯定是A
28. Which of the following enzymes cleaves only single-standed nucleotides?
A. RNAase H
B. Restriction enzyme EcoR1
C. Klenow fragment
D. S1 nuclease
好像A 跟 D都可以
30. Which statement about DNA-protein interaction is true?
A. As a DNA bends by proteins, it is more susceptible to DNase digestion.
B. The four different base pairs present four different hydrogen bonding
profiles to amino acids approaching either the major or minor groove
DNA.
C. λrepressor from hydrogen bonding with the minor groove of the operator.
D. Blinding with tryptophan does not change the shape of the trp repressor.
我只確定D不對
38. Please briefly describe how the abundance of each species of mRNA in the
eukaryotic cells differs significantly?
我一點辦法也沒有XD
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