set 1 MCQ Questions & Answers Detailed Explanation

MOST IMPORTANT general science mcq - 5 EXERCISES

Top 30,000+ General Science Memory Based Exercises

The following question based on genetics, evolution of life & ecological biodiversity topic of general science mcq

Questions : According to recent proof, the life on earth emerged approximately

(a) Before 20,00,000 years

(b) Before 20,000 years

(c) Before 2,00,000 years

(d) Before 2,000,000,000 years

The correct answers to the above question in:

Answer: (d)

Practice genetics, evolution of life & ecological biodiversity (set 1) Online Quiz

Discuss Form

Valid first name is required.
Please enter a valid email address.
Your genuine comment will be useful for all users! Each and every comment will be uploaded to the question after approval.

Read more genetics evolution of life and ecological biodiversity Based General Science Questions and Answers

Question : 1

To which of the following types of animals are Salamanders closely related?

a) Prawns and Crabs

b) Dolphins and Whales

c) Frogs and Toads

d) Seals and Walruses

Answer: (c)

Question : 2

Vestigial organs are those present in the living beings without functions gives and mark the correct option for vestigeal organs in humans

a) nicitating membrane in eyes

b) Vermifrom appendix

c) mammary glands of male

d) all of the above

Answer: (d)

These 'useless' body parts, otherwise known as vestigial organs, are remnants of lost functions that our ancestors possessed. They once represented a function that evolved out of a necessity for survival, but over time that function became non-existent.

Question : 3

Whittaker is famous for

a) Five kingdom classification

b) Two kingdom classification

c) Four kingdom classification

d) Distinguishing in Bacteria & Blue green algae

Answer: (a)

Question : 4

Which bacteria is utilized in gober gas plant?

a) Ammonifying bacteria

b) Methanogens

c) Nitrifying bacteria

d) Denitrifying bacteria

Answer: (b)

Methanobacillus (methanogen) occurs in marshes and also in dung. It produces CH4 gas under anaerobic condition and is utilized in gobar gas plant.

Question : 5

Which of the following is not a pteridophyte?

a) Polypodium

b) Ginkgo

c) Selaginella

d) Azolla

Answer: (b)

Ginkgo is a gymnosperm.

Question : 6

Down’s syndrome is due to

a) chromosome number increase in 18th pair autosome

b) chromosome number decrease in 21st pair autosome

c) chromosome number increase in 21st pair autosome

d) chromosome number decrease in 18th pair autosome

Answer: (c)

Down syndrome is a case of Trisomy 21, a genetic disorder caused by the presence of all or part of a third copy of chromosome 21.

GET genetics, evolution of life & ecological biodiversity PRACTICE TEST EXERCISES

set 1

set 2

set 3

set 4

set 5

Recently Added Subject & Categories For All Competitive Exams

New 150+ Percentage Questions For IBPS Clerk Prelims 2024

Free Top Percentage Quants Aptitude based Multiple Choice Questions and Answers Practice Test Series, Quiz PDF & Mock Test for IBPS Clerk Prelims 2024 Exam

04-May-2024 by Careericons

Continue Reading »

Classification Reasoning MCQ For IBPS Clerk Prelims 2024

Most Important 100+ Classification based Verbal Reasoning Ability Multiple choice questions and answers PDF, Free New Mock tests For IBPS Clerk Prelims 2024

03-May-2024 by Careericons

Continue Reading »

Ratio and Proportion Questions with Solutions, IBPS Clerk

New Ratio and Proportion Quants Aptitude based Multiple Choice Questions and Answers Practice Test Series, Quiz & Mock Test for IBPS Clerk Prelims 2024 Exam

02-May-2024 by Careericons

Continue Reading »

Top Analogy Reasoning Ability For IBPS Clerk Prelims 2024

Most Important Analogy based Verbal Reasoning Multiple choice questions and answers practice quiz series PDF, Free New Mock tests For IBPS Clerk Prelims 2024

01-May-2024 by Careericons

Continue Reading »