Problem 37 - Objective Biology for NEET

Question

Binomial nomenclature means (a) Two names in which one is given by zoologist and other by botanist. (b) One scientific name consisting of a generic name and a specific epithet. (c) Two names in which one is latinized and other is french. (d) Two names in which one is scientific and other is local.

Step-by-Step Solution

Answer

Option (b), 'One scientific name consisting of a generic name and a specific epithet', is the correct choice. This statement accurately defines the binomial nomenclature in taxonomy.

Step 1: Understand the definition of Binomial Nomenclature

In the field of taxonomy, Binomial Nomenclature is a standard convention that is used for naming species. Each species receives a two-part Latinized name. The first part is the genus name and the second part is the specific epithet.

Step 2: Analyze the options

Now, review the options given. The question is about the definition of binomial nomenclature, therefore, the correct choice will denote exactly what it stands for.

Step 3: Select the correct choice

Upon analyzing, one can conclude that option (b) 'One scientific name consisting of a generic name and a specific epithet' aligns with the definition of binomial nomenclature. This statement accurately describes the practice of classifying the species with a two-part name - a generic name and a specific epithet. The other options either don't fully explain binomial nomenclature or provide misconceptions about its definition.

Key Concepts

taxonomy

Within biology, taxonomy serves as a systematic method for classifying and naming organisms. This science helps in understanding the vast diversity of life by placing species into hierarchical categories. Taxonomy starts at broad levels and becomes increasingly specific. The hierarchy in taxonomy includes several ranks:

• Kingdom
• Phylum
• Class
• Order
• Family
• Genus
• Species

This order allows scientists to pinpoint the position of each species related to others. For example, humans are classified as:

• Kingdom: Animalia
• Phylum: Chordata
• Class: Mammalia
• Order: Primates
• Family: Hominidae
• Genus: Homo
• Species: sapiens

This detailed structure ensures clear communication among scientists worldwide. It helps avoid confusion, as common names can differ across languages and regions.
This system also assists in identifying newly discovered species. By placing them within the existing taxonomy, we can learn more about their relationships and evolutionary history.

species naming

Species naming in the context of binomial nomenclature provides a universal method for identifying organisms. This process involves assigning a two-part name to each species, ensuring each has a unique label recognized by scientists globally. The two parts of the name are:

• Genus Name: This is always capitalized and represents the broader group to which the species belongs. It is the first part of the species name.
• Specific Epithet: This follows the genus name and is not capitalized. It distinguishes the species within the genus.

These names are usually rooted in Latin or are Latinized, allowing them to be recognized internationally regardless of local language differences. For example, in the species name Homo sapiens, Homo is the genus and sapiens is the specific epithet.
This system not only aids in identification but also provides a hierarchical glimpse into the species' characteristics and lineage. It signifies relationships among species, helping scientists communicate observations and discoveries without ambiguity.

Latinized names

The use of Latinized names in binomial nomenclature plays a crucial role in ensuring consistency across different languages and regions. Latin was chosen as it was historically the scholarly language of Europe, thus serving as a neutral and universal choice. Latin provides a sense of stability and universality that avoids the pitfalls of ever-changing vernacular languages.
Creating Latinized names involves:

• Adapting existing Latin words or phrases.
• Modifying non-Latin words into a form that appears Latin.

These methods ensure that names are standardized and can be easily adapted by scientists from various linguistic backgrounds. For instance, the dandelion, known commonly by many different names across countries, is universally identified as Taraxacum officinale.
This universality prevents confusion arising from regional nomenclature and facilitates clearer scientific communication. It also provides insights into the features or origins of a species, as many Latinized names reference the geographic origin, physical characteristics, or a person associated with the species discovery.