1. Which among the following is not a sex linked character?
[A] Color blindness
[B] Baldness
[C] Asthama
[D] None of the above
Show Answer
Correct Answer: C [Asthama]
Notes:
Asthama is not a sex linked character whereas colorblindness and baldness are sex linked. Colour blindness usually involves the inability to distinguish between shades of the colours red and green.
2. Which one of the following pairings is inaccurate?
[A] Malleus – Middle Ear Bone
[B] Maxilla – Facial Bone
[C] Lunate Carpal Bone – Wrist Bone
[D] All are correct
Show Answer
Correct Answer: B [Maxilla – Facial Bone]
Notes:
The Maxilla is not a Cranial Bone as suggested in the original match. In fact, it is a significant bone of the facial structure. It assists in the formation of the orbit, roof of the mouth, and the shape and size of the upper dental arch. Its primary role includes facilitating mastication and communication.
3. Which among the following is the first country to issue research licenses for human embryonic cloning to create stem cells?
[A] United States
[B] Australia
[C] Germany
[D] Britain
Show Answer
Correct Answer: D [Britain]
Notes:
Britain is the first country to issue research licenses for human embryonic cloning to create stem cells. The cloning procedure involves the process of combining a patient’s body cell with an unfertilized egg cell from a donor.
4. Which among the following protein is responsible for maintenance of osmotic pressure?
[A] Beta macroglobulin
[B] Gamma globulin
[C] immunoglobulin
[D] albumin
Show Answer
Correct Answer: D [albumin]
Notes:
The protein responsible for the maintenance of osmotic pressure in the blood is albumin. Albumin, produced by the liver, constitutes about 60% of the total protein in plasma and plays a crucial role in regulating oncotic pressure, which helps retain fluid within the blood vessels. Low levels of albumin can lead to edema and other complications. In contrast, beta macroglobulin and gamma globulin (immunoglobulins) are involved in immune responses and do not primarily function in osmotic pressure regulation.
5. Which among the following animals is closest to corals in evolutionary terms?
- Sea Cow
- Sea Horse
- Sea Lion
- Sea Anemone
Select the correct answer using the codes given below:
[A] Only 1
[B] Only 2
[C] Only 3
[D] Only 4
Show Answer
Correct Answer: D [Only 4]
Notes:
Corals and sea anemones both belong to Phylum Cnidaria, sharing similar evolutionary lineages as simple, radially symmetrical, aquatic invertebrates. Sea cow (mammal), sea horse (fish), and sea lion (mammal) are distantly related and do not share this close evolutionary relationship with corals. Hence, option 4 is correct.
6. What does the term “Zoophyte”, in biological context, refer to?
[A] A plant that visually resembles an animal
[B] An animal that visually resembles a plant
[C] A plant that grows on an animal
[D] An animal that grows on a plant
Show Answer
Correct Answer: B [An animal that visually resembles a plant]
Notes:
In biology, Zoophytes are organisms that exhibit characteristics of both animals and plants, although they are animals. They have plant-like appearance and perform photosynthesis, but belong to the animal kingdom. The term is commonly used to describe certain types of marine life, such as sea anemones and corals. These organisms are often static and have similar systems of feeding and growth as certain plant species. Zoophytes display an extraordinary demonstration of nature’s capacity for variation and adaptation.
7. What is that gene called which have two or more than two characters?
[A] Duplicate gene
[B] Pleiotropic gene
[C] Polymeric gene
[D] Su-HW gene
Show Answer
Correct Answer: B [Pleiotropic gene]
Notes:
A single gene may have two or more phenotypic expressions or characters. The multiple phenotypic effect of a single gene is called pleiotropism. Hence the gene associated with this phenomenon is called Pleiotropic gene.
8. Which movements of “Touch me not plant” lead to closing of its leaves when touched?
[A] Nyctinastic movements
[B] Seismonastic movements
[C] Chemonastric movements
[D] Photonastic movements
Show Answer
Correct Answer: B [Seismonastic movements]
Notes:
Seismonastic Movement is caused by the mechanical stimuli like shock, touch, fast moving wind, etc. Mimosa pudica is a perennial herb which is also known as the touch me not plant or the sensitive plant, is well-known for closing its leaves (or folding its leaves inwards) when touched.
9. What is study of fungus Known as?
[A] Mycology
[B] Phrenology
[C] Physiology
[D] Biology
Show Answer
Correct Answer: A [Mycology]
Notes:
Mycology is the branch of biology concerned with the study of fungi, including their genetic and biochemical properties, their taxonomy and their use to humans as a source for tinder, medicine, food, and entheogens, as well as their dangers, such as toxicity or infection.
10. In which of the following class can we put Adrenaline?
[A] Fat
[B] Hormone
[C] Enzyme
[D] Protein
Show Answer
Correct Answer: B [Hormone]
Notes:
Adrenaline, also known as epinephrine, is a hormone, neurotransmitter, and medication. Adrenaline is normally produced by both the adrenal glands and certain neurons.
