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Biology General Knowledge Questions and Answers

4 years ago 11.8K Views
Q :  

What are the biological factors causing disease?

(A) vector

(B) bacteria

(C) factor

(D) pathogen

Correct Answer : D
Explanation :

These factors include age, sex, genetic inherited conditions (e.g., sickle-cell, cystic fibrosis), or genetic alterations that increase risks for certain diseases (e.g., BRCA1/BRCA2, MEN1).


Q :  

Essential elements for plant overdose?

(A) Nitrogen

(B) Sulfur

(C) calcium

(D) Phosphorus

Correct Answer : A
Explanation :

The term "overdose" in the context of essential elements for plants suggests an excess or imbalance of nutrients, which can have negative effects on plant health. Among the options given:

(A) Nitrogen

Explanation: While all nutrients are essential for plant growth, an overdose or excessive application of nitrogen (option A) can lead to problems such as nutrient imbalance, environmental pollution, and increased susceptibility to certain diseases. Excessive nitrogen can cause rapid vegetative growth, but it may negatively impact other aspects of plant health, such as root development, flowering, and overall resilience.

Balanced nutrient management is crucial for optimal plant growth, and it's important to consider the specific requirements of each plant species and the soil conditions to avoid nutrient imbalances and potential negative effects on plant health.


Q :  

Plants are made disease resistant by it?

(A) Kalchisin

(B) Reproduction

(C) Harmonous

(D) heat

Correct Answer : B

Q :  

What plant breeders should they do to produce an immunogenic species?

(A) Selection

(B) Mutation

(C) Crop production

(D) Hybridization

Correct Answer : A

Q :  

Gir, Sahiwal and Lal Singhi are its different breeds?

(A) cow

(B) Sheep

(C) Goat

(D) Buffalo

Correct Answer : A
Explanation :

The different breeds mentioned—Gir, Sahiwal, and Lal Singhi—are associated with:

(A) Cow

Explanation:

Gir, Sahiwal, and Lal Singhi are breeds of cows (cattle). These breeds are known for their distinct characteristics, including milk production, adaptability to specific environments, and other traits that make them well-suited for various agricultural purposes. Therefore, the correct answer is (A) Cow.


Q :  

Which of the following kits is a social animal?

(A) Bee

(B) Mosquito

(C) Bur

(D) Domestic fly

Correct Answer : A
Explanation :

The social animal among the options is:

(A) Bee

Explanation:

Bees are known for their highly organized and social behavior. They live in colonies where individuals have specific roles such as workers, drones, and a queen. They communicate with each other, work together for the common good of the colony, and have a complex social structure. In contrast, mosquitoes, bur (assuming it refers to burrowing animals), and domestic flies are not typically considered social animals in the same way as bees. Bees, especially honeybees, are well-known for their intricate social organization and cooperation within the colony.


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