Biotechnology
GATE BT exam:gate PYQs
Build your understanding with focused practice from past exam papers.
Questions 231–240 of 650. Imported answers require independent review unless marked reviewed.
Question 36
Open questionBTMCQ2 marksNeeds review
Match the immune tolerance mechanisms in Group I with their respective outcomes in Group II.
Group I | Group II |
|---|---|
P. Anergy | 1. Elimination of activated T-cells after antigen clearance |
Q. Activation-induced cell death | 2. Inhibition of auto-reactive T-cells at periphery |
R. Receptor editing | 3. Unresponsiveness to antigens due to lack of co-stimulatory molecules |
S. Regulatory T-cells | 4. Elimination of auto-reactive B-cells |
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 37
Open questionBTMCQ2 marksNeeds review
Match the type of bacteria in Group I with their respective growth properties in Group II.
Group I | Group II
P. Halophile | 1. Grows optimally between 20 °C and 45 °C
Q. Piezophile | 2. Grows best at low water activity
R. Mesophile | 3. Grows at high level of salt
S. Xerophile | 4. Grows optimally at high hydrostatic pressure
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 38
Open questionBTMCQ2 marksNeeds review
Match the virus in Group I with the type of genome it contains in Group II.
Group I | Group II
P. T4 bacteriophage | 1. dsRNA
Q. SARS-CoV-2 | 2. ssDNA
R. Pseudomonas phage φ6 | 3. dsDNA
S. φX174 bacteriophage | 4. ssRNA
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 39
Open questionBTMSQ2 marksNeeds review
The event(s) that lead(s) to inactivation of tumor suppressor genes in cancer cells is(are)
Your answerSelect all correct options. You can choose more than one.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 40
Open questionBTMSQ2 marksNeeds review
Methylation of CpG islands near the promoter of a gene can inhibit transcription by
Your answerSelect all correct options. You can choose more than one.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 41
Open questionBTMSQ2 marksNeeds review
Which of the following statement(s) is(are) TRUE about induced pluripotent stem cells?
Your answerSelect all correct options. You can choose more than one.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 42
Open questionBTMSQ2 marksNeeds review
Which of the following statement(s) is(are) TRUE about fluoroquinolone drugs?
Your answerSelect all correct options. You can choose more than one.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 43
Open questionBTMSQ2 marksNeeds review
Which of the following is(are) plant protoplast fusogenic agent(s)?
Your answerSelect all correct options. You can choose more than one.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 44
Open questionBTMSQ2 marksNeeds review
Direct DNA transfer method(s) used for plant genetic engineering is(are)
Your answerSelect all correct options. You can choose more than one.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 45
Open questionBTMSQ2 marksNeeds review
Which of the following vector(s) is(are) used to clone a DNA fragment of size 220 kb?
Your answerSelect all correct options. You can choose more than one.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer