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Biotechnology - 30
It is highly valued if the lymphocytes derived from the lymph node or tonsil tend to undergo fusion at A. high frequencies B. moderate frequencies C. low frequencies D. at no frequency..... Small simple molecules are A. poor antigens B. rich antigens C. moderate antigens D. heterophilic antigens View Answer Workspace Report Discuss in Forum The EBV-hybridoma technique A. immortalizes the donor Bcells B. facilitates the proliferation of antigen specific B cells C. gives much higher hybridization frequencies D. all of the above View Answer Workspace Report Discuss in Forum Helper T cells assist in the functions of A. certain B cells....
Thời gian bắt đầu: Hôm nay lúc 14:01:45(Server time)
Số câu hỏi: 10.   Tổng điểm: 10
Thời gian làm bài: 20 phút.  Thời gian còn lại: 
Cỡ chữ câu hỏi:  Cỡ chữ đáp án:
1-
It is highly valued if the lymphocytes derived from the lymph node or tonsil tend to undergo fusion at
A-
high frequencies
B-
moderate frequencies
C-
low frequencies
D-
at no frequency
2-
Small simple molecules are
A-
poor antigens
B-
rich antigens
C-
moderate antigens
D-
heterophilic antigens
3-
The EBV-hybridoma technique
A-
immortalizes the donor Bcells
B-
facilitates the proliferation of antigen specific B cells
C-
gives much higher hybridization frequencies
D-
All of the above
4-
Helper T cells assist in the functions of
A-
certain B cells
B-
certain T cells
C-
certain B cells and other T cells
D-
None of the above
5-
In immuno-inflammatory diseases such as hemolytic anaemia, eczema etc.,
A-
T8 cells are greatly reduced
B-
T8 cells are greatly increased
C-
T4 cells are greatly reduced
D-
T4 cells are greatly increased
6-
Which of the following is incorrect?
A-
MAbs can be used to diagnose or treat diseases
B-
MAbs can be used in tumor scanning
C-
MAbs canbe used in cancer diagnosis
D-
MAbs can not be used in such non-infectious diseases as those of endocrine system
7-
The antigen-specific lymphocytes can be immortalized by which of the following method?
A-
Transfection with tumor derived DNA
B-
Hybridization with a suitable lymphoid tumor cell
C-
Transformation following infection by Epstein-Barr virus (EB V)
D-
All of the above
8-
A cytokine that stimulates the activity of B and T cells is
A-
lymphotoxin
B-
interlukin-2
C-
interlukin-1
D-
All of these
9-
Which type of cell actually secrets antibodies?
A-
plasma cells
B-
T cells
C-
macrophages
D-
dendritic cells
10-
Which of the following is correct?
A-
rabbits do not make myelomas whereas mice are unable to synthesize antibodies
B-
rabbits do not make myelomas whereas mice are able to synthesize antibodies
C-
rabbits make myelomas whereas mice are unable to synthesize antibodies
D-
rabbits make myelomas whereas mice are able to synthesize antibodies
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