✅ CLASS 11 BIOLOGY – CHAPTER-WISE ADVANCED MCQs
NEET marking: +4 for correct, –1 for wrong, 0 for not attempted. Score will show in a popup after you attempt ALL questions.
🔵 CHAPTER 1 — THE LIVING WORLD (10 Very Tough MCQs)
Chapter 1 – The Living World
Q1.
Two organisms show 98% similarity in mitochondrial genes, but cannot interbreed even under controlled laboratory conditions. According to various species concepts, they will be placed in the same species under:
Chapter 1 – The Living World
Q2.
Presence of histone-like proteins, ether-linked lipids, methanogenesis, and survival at 110°C indicates the organism belongs to:
Chapter 1 – The Living World
Q3.
A newly discovered organism shows no cellular structure, has RNA as genetic material, and multiplies only inside host cells. It is best classified as:
Chapter 1 – The Living World
Q4.
Which of the following is NOT a universally accepted defining property of life?
Chapter 1 – The Living World
Q5.
A researcher describes a new plant species. To validate the scientific name under ICBN, which is mandatory?
Chapter 1 – The Living World
Q6.
A species shows extreme morphological variation due to environment (polyphenism). Such species are difficult to classify by:
Chapter 1 – The Living World
Q7.
Which of the following shows biological species concept failure?
Chapter 1 – The Living World
Q8.
Sibling species are difficult to distinguish because they:
Chapter 1 – The Living World
Q9.
Use of DNA profiles, protein electrophoresis, and metabolomics for classification represents:
Chapter 1 – The Living World
Q10.
A whale grouped with fish in early classification was due to:
NEET-Style Result – Chapter 1