1. MON 863 is a genetically engineered variety of which among the following?
[A] Soya Bean
[B] Maize
[C] Rice
[D] Tomato
Show Answer
Correct Answer: B [Maize]
Notes:
MON 863 is a genetically engineered variety of maize produced by Monsanto. It was generated by transformation of Zea mays cell culture line AT824 with a MIuI restriction fragment from plasmid PV-ZMIR13 using particle acceleration technology.
2. Which among the following in Human Heart is / are responsible for contractions that send the blood through the circulation?
[A] Left Atrium
[B] Both Atria
[C] Right Ventricle
[D] Both Ventricles
Show Answer
Correct Answer: D [Both Ventricles]
Notes:
Each half of the heart has two chambers: an atrium, and a lower chamber called the ventricle. The function of the ventricles is to pump blood into systemic and pulmonary circulations.
3. In Gymnosperms seeds are__________?
[A] Always naked
[B] Always covered
[C] Naked in some and covered in others
[D] Absent
Show Answer
Correct Answer: A [Always naked]
Notes:
Gymnosperms are called so because they have naked ovules / seeds. In terms of plant evolution, they are first seed-bearing plants. They are inferior to Angiosperms because in Angiosperms, the ovules are covered.
4. From which part of the Glycyrrhiza glabra plant, also known as Liquorice or Mulethi, is the extract derived?
[A] Leaves
[B] Roots
[C] Fruits
[D] Stem
Show Answer
Correct Answer: B [Roots]
Notes:
Liquorice root, or Mulethi, is a potent expectorant that has been utilized in Ayurvedic medicine since ancient times. The powdered root is used in “Jastimadhu” tooth powder. Many cough syrups incorporate Liquorice as one of their components. It is also used to treat mouth and peptic ulcers, attesting to its versatile medicinal properties. Liquorice root is well-regarded for its numerous health benefits apart from its sweet flavour.
5. Which among the following is the correct location of pyloric sphincter in human body?
[A] between Oral cavity and esophagus
[B] between Esophagus and Stomach
[C] between Stomach and duodenum
[D] between duodenum and Jejunum
Show Answer
Correct Answer: C [between Stomach and duodenum]
Notes:
Pyloric sphincter is located between Stomach and duodenum. It is a small piece of smooth visceral muscle which acts as a valve and regulates the flow of partially digested food from the stomach to the duodenum.
6. Which of the following artificial sweeteners is not broken down by the body and therefore it is non-caloric (no-calorie sweetener)?
[A] Aspartame
[B] Saccharin
[C] Sucralose
[D] Cyclamate
Show Answer
Correct Answer: C [Sucralose]
Notes:
Sucralose is an artificial sweetener. The majority of ingested sucralose is not broken down by the body and therefore it is non-caloric. Sucralose is approximately 600 times as sweet as sucrose (table sugar), twice as sweet as saccharin, and 3 times as sweet as aspartame. It is stable under heat and over a broad range of pH conditions. Therefore, it can be used in baking or in products that require a longer shelf life. The commercial success of sucralose-based products stems from its favorable comparison to other low-calorie sweeteners in terms of taste, stability, and safety. It is used because it is a no-calorie sweetener, and does not promote dental cavities, is safe for consumption by diabetics, and does not affect insulin levels.
7. In which among the following plants, seeds germinate and seedlings grow while still attached to their mother plant?
[A] Onion
[B] Rhizophora
[C] Sheesham
[D] Cycas
Show Answer
Correct Answer: B [ Rhizophora]
Notes:
The phenomenon is found in Mangrove Plants and is known as Vivipary and Rhizophora belongs to that category.
8. Which one of the following creatures has maximum number of ribs?
[A] Ray fish
[B] Flying mammal
[C] Snake
[D] Crocodile
Show Answer
Correct Answer: C [ Snake ]
Notes:
Snakes have the maximum number of ribs. On an average they have 200 to 400 bones (Vertibrae ) and each have a pair of ribs on either side.
9. Synapse gap is present between which of the following?
[A] Brain and Spinal cord
[B] Two eyes
[C] Two Kidneys
[D] Two neurons
Show Answer
Correct Answer: D [Two neurons]
Notes:
Information from one neuron flows to another neuron across a synapse. The synapse contains a small gap separating neurons. The synapse consists of: a presynaptic ending that contains neurotransmitters, mitochondria and other cell organelles.
10. Which of the following is the reason behind bleeding through nose in high mountain regions?
[A] The pressure of the blood capillaries is higher than the outside pressure
[B] The pressure at high altitudes is greater than that in the plains
[C] The blood pressure increases at high altitudes
[D] The blood pressure decreases at high altitudes
Show Answer
Correct Answer: A [The pressure of the blood capillaries is higher than the outside pressure]
Notes:
As altitude increases, the availability of oxygen decreases, making the air thinner and drier. Dry climates can cause drying and cracking inside the nose, which can lead to a nosebleed. The climate inside nose gets drier. This makes the blood vessels exposed inside your nose more likely to burst there than at lower altitudes.
