Question 12 :
Which of the following parts of the flowering plants is haploid?<br/>1) Ovary 2) Pollen 3) Egg 4) Anther 5) Zygote
Question 15 :
The process of production of closely resembled young one is called as
Question 20 :
The motile reproductive structures of algae and fungi, which directly give rise to new individuals are called<br>
Question 21 :
The process of formation of one or more outgrowths from an individual is known as?
Question 22 :
The process of propagation of new individual from the existing one is called as
Question 24 :
Condoms are one of the most popular contraceptives because of the following reasons.
Question 28 :
Which of the following birth control methods are associated with the highest pregnancy rates with typical use?
Question 31 :
Which of the following is the most widely accepted method of contraception in India at present?
Question 34 :
F$_1$ generation of a cross between a red flowered plant and a white flowered plant predominantly consisted of red flowered plants indicating red flower trait is
Question 35 :
The cross used to ascertain whether the plant is homozygous or heterozygous is
Question 38 :
For the alleles $A,B,C,D$ where, $A=B>C=D$ the number of phenotypes obtained will be
Question 39 :
A cross done between a homozygous recessive and a heterozygous plant is called as<br/>
Question 40 : The Punnett square below shows a cross between a pure tall and heterozygous tall plant. What is the total number of tall offspring represented in the Punnett square?<br/>T- tall plant<br/>t- short plant<br/><table class="wysiwyg-table"><tbody><tr><td></td><td>T</td><td>T</td></tr><tr><td>T</td><td>TT</td><td>TT</td></tr><tr><td>t</td><td>Tt</td><td>Tt</td></tr></tbody></table>
Question 41 :
Mendel, for his studies chose pea plants and considered many contrasting characteristics present in the pea plants. One of characteristics not considered by him was
Question 42 :
In the monohybrid cross Tt x tt, the phenotypic ratio of the progeny would be 
Question 43 :
If a cross is made between two individuals, each having genotype Bb, two offsprings are obtained. Out of these first has dominant trait. What is the probability that the second offspring will exhibit recessive trait?
Question 44 :
Which one of the following combinations is found in DNA ?
Question 45 :
What is the length of human DNA containing $6.6\times10^9$ bp nitrogen bases?
Question 46 :
In the double helix model of DNA, what would bethe distance between two consecutive base pairs?
Question 47 :
Watson and Crick were awarded Nobel Prize for their finding of
Question 49 :
According to Watson-Crick model, hydrogen bonding in a double-stranded DNA occurs between.
Question 50 :
Choose the correct answer from the alternatives given :<br>Ifthe sequence of nitrogen bases of the coding strand of DNA in a transcriptionunit is: 5 - A T G A AT G - 3, the sequence of bases in its RNA transcriptwould be
Question 52 :
<i></i><i></i>The experimental system used in studies of the discovery ofreplication of DNA has been<br>
Question 59 :
The ability of individuals to adapt to changes in the environment can be considered as
Question 60 :
Which of the following is the initial step towards good health?
Question 65 :
The product of which has been commercialised for lowering blood cholesterol.
Question 66 :
Identify two correct statements from the following.<br>(i) Rennin is industrially produced by Mucor pusilus<br>(ii) Streptokinase is industrially produced by Pseudomonas pudica<br>(iii) Alkaline serine protease is produced by Bacillus licheniformis<br>(iv) DNA polymerase is produced by Trichoderma reesi.<br>
Question 70 :
A sewage treatment process in which a part of decomposer bacteria present in the wastes is recycled into the starting of the process is called as:
Question 72 :
Ecological factors, which prevent a species from producing at its maximum rate is termed as <br/>
Question 74 :
Which of the following is an example of a man-made ecosystem?
Question 76 :
Rate of conversion of light energy into chemical energy of organic molecules in an ecosystem is<br>
Question 79 :
Gross primary productivity is the rate of productivity of _______ during photosynthesis
Question 80 :
Which of the following ecosystem has the highest gross primary productivity?<br/>
Question 81 :
One of the chief reasons among the following for the depletion in the number of species making it endangered is<br/>
Question 83 :
Who observed that within a region, species richness increased with increasing explored area but only upto a limit?<br/>
Question 92 :
Vehicular standard based on European regulation was first introduced in .......... in India.
Question 94 :
When the level of contaminants in air becomes so much that air becomes harmful for living beings, it is called ________.
Question 97 : Measurement of the rate of oxygenconsumption in unit volumeof water over a period of time is done to find out<p></p>
Question 98 :
Find the odd one out for the example of natural air pollutant.
