1. Opium is obtained from the dry latex from which part of the Papaver somniferum Plant?
[A] Stem
[B] Leaves
[C] Poppy
[D] Stem joints
Show Answer
Correct Answer: C [Poppy]
Notes:
Opium is dried latex which is obtained from the seed capsules of the opium poppy Papaver somniferum.
2. The name of Karl Landsteiner is associated with the discovery of which of the following ?
[A] Human Endocrine System
[B] Human Blood Groups
[C] Vitamin B Group
[D] Proteins
Show Answer
Correct Answer: B [Human Blood Groups]
Notes:
The name of Karl Landsteiner is associated with the discovery of Human Blood Groups. He was given the Nobel Prize for Physiology or Medicine in 1930 for his discovery in 1901 of, and outstanding work on, the blood groups.
3. Which among the following is a Mollusc?
[A] Cuttle fish
[B] Silver fish
[C] Dog fish
[D] None of the above
Show Answer
Correct Answer: A [Cuttle fish]
Notes:
Cuttle fish or cuttles are marine molluscs of the order Sepiida. Molluscs are an important phylum of invertebrate animals. It is the second-largest phylum of invertebrate animals after the Arthropoda.
4. Which among the following is true regarding fraternal twins?
[A] They may look similar but are not genetically identical
[B] They are exactly similar but are not genetically identical
[C] They are exactly similar and are genetically identical
[D] None of the above
Show Answer
Correct Answer: B [They are exactly similar but are not genetically identical]
Notes:
Twins are two offspring produced by the same pregnancy. Twins can be either monozygotic (‘identical’), meaning that they develop from one zygote, which splits and forms two embryos, or dizygotic (‘fraternal’), meaning that each twin develops from a separate egg and each egg is fertilized by its own sperm cell.
5. The Bovine spongiform encephalopathy (BSE) is commonly known as _______?
[A] Foot & Mouth Disease
[B] Mad Cow Disease
[C] Fog fever
[D] Creutzfeldt-Jakob disease
Show Answer
Correct Answer: B [Mad Cow Disease]
Notes:
The Bovine spongiform encephalopathy (BSE) is commonly known as Mad Cow Disease. It is a brain disorder in an adult cattle that may be spread to humans through diseased meat.
6. Which among the following live tissues of the Human Eye does not have blood vessels?
[A] Sclera
[B] Cornea
[C] Choroid
[D] Iris
Show Answer
Correct Answer: B [Cornea]
Notes:
Cornea does not have blood vessels. It is the transparent part of the eye that covers the front portion of the eye. It covers the pupil, iris, and anterior chamber.
7. From the point of view of evolution of living organisms, which of the following set of animals is a correct sequence of evolution?
[A] Whale, Kangaroo, Echidna
[B] Echidna, Whale, Kangaroo
[C] Kangaroo, Whale, Echidna
[D] Echidna, Kangaroo, Whale
Show Answer
Correct Answer: D [Echidna, Kangaroo, Whale]
Notes:
From the point of view of evolution of living organisms, the correct sequence of evolution in the above options is: Echidna, Kangaroo, Whale.
8. A cell increases in volume when it is placed in which of the following?
[A] Hypotonic solution
[B] Isotonic solution
[C] Hypertonic solution
[D] None of the above
Show Answer
Correct Answer: A [Hypotonic solution]
Notes:
Hypotonic solution is hypotonic to a cell if it has a lower solute concentration than the cell does. Osmosis draws water out of the solution and into the cells. As a result, plant and animal cells both appear more plump when placed in a hypotonic solution.
9. In a majority of flowering plants, out of the four megaspores, what is the ratio of functional and degenerate megaspores?
[A] 2:2
[B] 1:3
[C] 4:1
[D] 3:1
Show Answer
Correct Answer: B [1:3]
Notes:
At least one of the spores develop into haploid female gametophytes thus making the ratio of functional and degenerate megaspores is 1:3. Out of the four, three megaspores degenrate.
10. Which among the following is more required by the Growing children?
[A] Proteins
[B] Carbohydrates
[C] Vitamins
[D] All of these
Show Answer
Correct Answer: A [Proteins]
Notes:
Growing kids need protein to help them build and repair cells, enzymes, and hormones, and, as a last resort, to provide energy. Protein foods also help form new blood cells and body tissues, and they help the nervous system function properly.
