List of top Zoology Questions

In Michaelis-Menten's equation, if \([S] = 15 K_m\), then the ratio \( v_0/V_{max} \) is ____ (Round off to three decimal places).
Which one or more of the following statements correctly describe(s) the changes upon the addition of puromycin during eukaryotic translation?
In mammals, hematopoietic stem cells that give rise to different types of blood cells are known as
Factor H, a complement regulatory protein in plasma, binds C3b and
Which one or more of the following statements correctly describe(s) the changes upon the addition of puromycin during eukaryotic translation?
In mammals, hematopoietic stem cells that give rise to different types of blood cells are known as
Choose the common characters shown by the animals of classes Scyphozoa and Anthozoa
A. Mesoglea is non-cellular with amoebocytes
B. Cnidocytes occur in ectoderm and endoderm
C. Germ cells are derived from endoderm
D. Coelenteron is undivided
In eucoelomates the mesoderm comes into contact with endoderm of alimentary canal to form gizzard and stomach. This is referred to as
The enzyme present in sweat, saliva and tears is
Identify the correct option
Statement – I : Alzheimer’s disease is most common in people above 65 years of age.
Statement – II : It is caused by loss of neurons and loss of memory.
The equation which explains relation of species–area on logarithmic scale
Assertion (A): The alkaline cerebrospinal fluid is recycled four times per day.
Reason (R): Recycling of cerebrospinal fluid facilitates the removal of metabolites and toxins from brain.
Identify the incorrect statement among the following
In Chloroplast chlorophyll is present in ___
The evolutionary force that reduces the genetic variation by removing low frequency alleles
The incorrect statement for subspecies
The connecting link between reptiles and mammals is:
Assertion (A): Mary Mallon was nicknamed as 'Typhoid Mary'.
Reason (R): Mary Mallon spread typhoid for several years through the food she prepared.
Identify the correct option
Statement – I: Excessive dosage of cocaine causes hallucinations
Statement – II: Intake of cocaine does not cause euphoria
Cells derived from any of the three germ layers are
Choose the incorrect pair among the following
  • A. Biosphere reserve - Indo Burma region
  • B. Aravalli Hills - Rajasthan and Gujarat
  • C. Koringa sanctuary - Uttarakhand
  • D. Biodiversity hotspot - Himalayan region
Dodder plant (Cuscuta) belongs to __ family.
Diabetes is related to this gland
Artificial insemination means
Reciprocal translocation of chromosomal pieces between 9 & 22 chromosomes leads to