Question 1 :
<p align="justify"> <font face="Cambria Math, serif">Consider the following statements</font></p> <p align="justify"> <font face="Cambria Math, serif">I. In microinjection method foreign DNA is directly injected into the nucleus of animal cell or plant cell by using micro needles or micro pipettes</font></p> <p align="justify"> <font face="Cambria Math, serif">II. Microinjection method is used in oocytes, eggs and embryo</font></p> <p align="justify"> <font face="Cambria Math, serif">III. Electroporation is the formation of temporary pores in the plasma membrane of host cell by using lysozyme or calcium chloride</font></p> <p align="justify"> <font face="Cambria Math, serif">IV. In chemical mediated gene transfer method certain chemicals such as </font> <img style='object-fit:contain' align="absmiddle" src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ff6ee248a225109bd16605b"/> <font face="Cambria Math, serif"> help foreign DNA to enter the host cell</font></p> <p align="justify"><font face="Cambria Math, serif">Which of the statements given above are correct?</font></p>

Question 2 :
<p> <font face="Cambria Math, serif">Which of the following is a transgenic plant?</font></p>

Question 3 :
<p> <font face="Cambria Math, serif">Consider the following statements about therapeutic drugs</font></p> <p> <font face="Cambria Math, serif">I. The recombinant DNA technology is used for production of therapeutic drugs which are safe and effective</font></p> <p> <font face="Cambria Math, serif">II. It avoid unwanted immunological responses, commonly observed with similar products isolated from non-human sources</font></p> <p> <font face="Cambria Math, serif">III. About thirty recombinant therapeutics have been approved for human use in the world including India</font></p> <p><font face="Cambria Math, serif">Which of the statements given above are correct?</font></p>

Question 5 :
<p> <font face="Cambria Math, serif">The first time in 1990, M Blease and WF Andresco of National Institute of Health, attempted gene therapy on a 4 year old girl with which of the following enzyme deficiency?</font></p>

Question 6 :
<p> <font face="Cambria Math, serif">Plasmids are autonomously replicating circular extrachromosomal DNA. This statement is</font></p>

Question 7 :
Which of the following is a natural genetic engineer of plants ?

Question 8 :
Two enzymes responsible for restricting the growth of bacteriophages in Escherichia coli were isolated. One was methylase and other was restriction endonuclease. What was the significance of methylase?

Question 9 :
Introduction of one or more genes into an&#160;organism which are normally not possessed by&#160;them or their deletion by using artificial means&#160;(not by breeding) comes under&#160;

Question 10 :
<b>Assertion</b> : ELISA is based on the principle of antigen antibody interaction. <br><b>Reason</b> : Pathogen infection is usually detected by presence of antigens or detection of antibodies synthesized against the pathogen.

Question 11 :
<p> <font face="Cambria Math, serif">The colonies of recombinant bacteria appear white in contrast to blue colonies of non-recombinant bacteria because of:</font></p>

Question 12 :
Read the following four statements (i-iv) and answer the question ? <br>(i) The first transgenic buffalo, Rosie produced milk which was human alpha-lactal albumin enriched. <br>(ii) Restriction enzymes are used in isolation of DNA from other macro-molecules. <br>(iii) Downstream processing is one of the steps of RDNA technology. <br>(iv) Disarmed pathogen vectors are also used in transfer of R-DNA into the host. Which are the two statements having mistakes?

Question 13 :
The protein product of the following Bt toxin genes cry I AC and cry II Ab are responsible for controlling

Question 14 :
Imagine a gel through which DNA fragments have moved in response to an applied electrical current. The band on this gel that is farthest from the top (that is, from the place where the DNA fragments were added to the “well”) represents the

Question 15 :
<p> <font face="Cambria Math, serif">DNA fingerprinting technique was first developed by</font></p>

Question 16 :
<p>The technique that was employed to produce haploids of <i>Datura </i>was </p>

Question 17 :
Match column-I with column-II and select the correct answer using the codes given below. <table><tr><td>Column - I</td><td>Column - II</td></tr> <tr><td>A. Plasmid</td><td>I. Selectable marker</td></tr> <tr><td>B. amp</td><td>II. Extrachromosomal DNA</td></tr> <tr><td>C. Ti-plasmid</td><td>III. Enzyme</td></tr> <tr><td>D. Chitinase</td><td>IV. Agrobacterium tumefaciens</td></tr></table>

Question 20 :
Find the correct statements (S) from the following. <br>I.Gene therapy is a genetic engineering technique used to treat disease at molecular level. <br>II.Calcitonin is medically useful recombinant product in the treatment of infertility. <br>III.Bt toxin is a biodegradable insecticide obtained from Bacillus thuringiensis.

Question 21 :
If we completely remove the decomposers from an ecosystem, the functioning will be adversely affected because:-

Question 22 :
<p> <font face="Cambria Math, serif">Ecology at the organism level is also called</font></p>

Question 23 :
<p> <font face="Cambria Math, serif">The medicinal plant </font> <img style='object-fit:contain' align="absmiddle" src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ff6e3affab6285fe9b59c65"/> <font face="Cambria Math, serif"> produces a chemical called</font></p>

Question 24 :
<p>Newly developed pathogens are more damaging to host because host are called</p>

Question 26 :
<p> <font face="Cambria Math, serif">Which of the following pair is a sedimentary type of biogeochemical cycle?</font></p>

Question 27 :
In exponential growth, the increase or decrease in population size during a unit period is

Question 29 :
<p> <font face="Cambria Math, serif">Which of the following problem is created by a brief exposure to extremely high sound level, 150 dB or more generated by take off of a jet plane or rocket?</font></p>

Question 31 :
<p> <font face="Cambria Math, serif">Irreparable computers and other electronic goods are known as</font></p>

Question 32 :
<p> <font face="Cambria Math, serif">Eutrophication is excessive growth of algae, plants and animals in water-bodies due to nutrient enrichment particularly with</font></p>

Question 33 :
Which of the following level of sound may damage ear drum and can impair the hearing ability permanently ?

Question 34 :
<p> <font face="Cambria Math, serif">A lake with an inflow of domestic sewage rich in organic waste may result in</font></p>

Question 35 :
Which of the following statements regarding decomposition is false?<br>I. Warm and moist favours decomposition. <br>II. Decomposition rate is slower if detritus is rich in chitin and lignin<br>III. Earthworm is detritus<br>IV. Precipitation of soluble inorganic nutrients in the soil horizon as unavailable salt is called mineralization<br>V. Detritus is the raw material for decomposition

Question 36 :
<p> <font face="Cambria Math, serif">About 70% of total global carbon is found in</font></p>

Question 37 :
Assertion (A) Diversity observed in the entire geographical area is called gamma diversity. <br>Reason (R) Biodiversity decrease from high altitude to low altitude

Question 38 :
Which of these is not an advantage of CNG over diesel?

Question 40 :
<p>Which of the following is expected to have the highest value <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ed09a76034cc06301290c8b"/>in a grassland ecosystem?</p>

Question 41 :
Historically, island species have tended to become extinct faster than species living on a mainland living on a mainland. Which of the folloiwng reasons can not be used to explain this phenomenon?

Question 43 :
<p> <font face="Cambria Math, serif">In a food chain, the maximum population of</font></p>

Question 44 :
<p> <font face="Cambria Math, serif">The entire sequence of communities that successively changes in a given area are called</font></p>