Master NEET Zoology with topic-wise questions. Tailored for NEET students, these questions strengthen your Biology preparation.
Which of the following hominin characteristics is considered LEAST likely to be a direct adaptation to a savannah environment?
Bipedalism
Reduced body hair
Increased cranial capacity
Development of sweat glands
In a controlled breeding program for sheep, a farmer aims to increase both wool yield and meat production. Which breeding strategy is MOST likely to achieve this dual objective, considering potential trade-offs between these traits?
Inbreeding within a single breed known for high wool yield
Crossbreeding with a breed known for high meat production, disregarding wool yield
Crossbreeding with different breeds selected for each trait, followed by selection of offspring with the desired combination
Random mating within a mixed population of sheep
Among the following, which group exhibits the LEAST complex body plan?
Ctenophora
Porifera
Platyhelminthes
Cnidaria
The evolutionary significance of metamerism in annelids is MOST accurately described as:
Increasing body size for predator avoidance
Providing redundancy of organs for increased survival
Facilitating specialized function and efficient locomotion through independent segmental movement
Reducing the need for a complex nervous system
The circulatory system of Cephalochordata is unique because it:
Has a two-chambered heart
Lacks a heart but has a contractile ventral aorta
Has a closed circulatory system with a dorsal heart
Has an open circulatory system
A couple unable to conceive naturally opts for Assisted Reproductive Technology (ART). After successful in-vitro fertilization, multiple embryos are formed. Which of the following ethical dilemmas is MOST likely to arise in this situation?
The financial burden of maintaining multiple pregnancies.
The increased risk of multiple pregnancies and associated complications.
The moral implications of discarding unused embryos.
The legal rights of the surrogate mother if one is used.
Which statement regarding biofortification is INCORRECT?
It aims to improve the nutritional quality of crops.
It can be achieved through conventional breeding or genetic engineering.
It is a strategy to address micronutrient deficiencies and improve public health.
It primarily focuses on enhancing macronutrient content in crops.
Which statement accurately reflects the modern understanding of the relationship between embryology and evolution?
Embryological development exactly mirrors evolutionary history (ontogeny recapitulates phylogeny).
Embryological similarities can provide evidence for common ancestry, but modifications during development can also lead to differences.
Similarities in embryonic development are primarily due to shared environmental factors.
Embryology provides no support for evolutionary theory.
Aside from its abundance, what characteristic distinguishes collagen from other major proteins like actin and myosin in animals?
Its primary role in forming connective tissues
Its involvement in muscle contraction
Its ability to transport oxygen
Its function as an enzyme
If variations caused by mutations were always small and directional, as Darwin initially proposed, which of the following would be TRUE?
Evolution would occur in sudden jumps.
New species would appear rapidly.
Evolution would proceed gradually and continuously.
Variations would not be heritable.
