Biology MCQs For Entry Test Preparation (Chapter Wise) || Important Biology MCQs For Entry Test || MDCAT Biology Test Online Preparation MCQs with Ans
Biology MCQs For Entry Test Preparation (Chapter Wise) || Important Biology MCQs For Entry Test || MDCAT Biology Test Online Preparation MCQs with Ans





OTHERs:


1. Study of the distribution of living organisms on Earth is called:
a) Zoogeography
b) Comparative Embryology
c) Modern Synthesis
d) Biogeography

ANSWER:
d) Biogeography

2. The oldest homologous structures are the: 
a) Vestigial Organs
b) Hydrothermal Vents
c) Endosymbiont
d) Acromegaly

ANSWER:
a) Vestigial Organs






3.  The Fossils remains of Archaeopteryx were found from:
a) Fish and Amphibians
b) Reptiles and Birds
c) Reptiles and Mammals
d) Amphibians and Reptiles

ANSWER:
b) Reptiles and Birds

4. Match convergent evolution with one of the following:
a) Analogy
b) Homology
c) Anatomy
d) Paleontology

ANSWER:
a) Analogy






5. Fossils record shows that the earliest known vertebrate fossils were off:
a) Amphibians
b) Fishes
c) Reptiles
d) Birds

ANSWER:
b) Fishes

6. Which one of the following Mammals lives only in America?
a) Armadillos
b) Elephant
c) Opossum
d) Kangaroo

ANSWER:
a) Armadillos






7. The oldest known fossils are of:
a) Protozoans
b) Algae
c) Pisces
d) Prokaryotes

ANSWER:
d) Prokaryotes

8. A gene pool consists of:
a) All Gametes in a population
b) The entire genome of the reproducing individual
c) The total of all alleles present in a population
d) All the alleles exposed to the natural section.

ANSWER:
c) The total of all alleles present in a population






9. The best evidence for a common origin of all life is:
a) Molecular Biology
b) Fossil Record
c) Comparative Anatomy
d) Embryology

ANSWER:
a) Molecular Biology

10. Archaeobacteria can tolerate temperatures up to:
a) 100°C
b) 150°C
c) 110°C
d) 120°C

ANSWER:
d) 120°C






11. Which person is incorrectly matched with a term or idea?
a) Linnaeus- Acquired characteristics
b) Malthus- Over-population
c) Darwin- Natural Selection
d) Lynn Margulis- Endosymbiont

ANSWER:
a) Linnaeus- Acquired characteristics

12. Most Fossils are found in:
a) Igneous Rocks
b) Sedimentary Rocks
c) Hard Rocks
d) Soft Rocks

ANSWER:
b) Sedimentary Rocks






13. A potential danger to a population that has been greatly reduced in number is the:
a) Tendency towards assertive mating
b) Hardy- Weinberg disequilibrium
c) Reduced Gene Flow
d) Loss of Genetic Variability

ANSWER:
d) Loss of Genetic Variability

14. All of the following are examples of divergent evolution except:
a) Fore Limb of Man
b) Wings Of Insects
c) Fore Limbs of Horse
d) Fore Limbs Of Bat

ANSWER:
b) Wings Of Insects






15. Eukaryotes first appeared about years ago:
a) 3.5 Million
b) 2.5 Billio
c) 1.5 Billion
d) 1.5 Million

ANSWER:
c) 1.5 Billion

16. A respiratory protein found in all aerobic species is the:
a) Cytochrome "c"
b) Cytochrome "b"
c) Cytochrome "a"
d) Cytochrome "d"

ANSWER:
a) Cytochrome "c"






17. From South America, Darwin collected a number of types of Finches:
a) 10
b) 12
c) 13
d) 15

ANSWER:
c) 13

18. In the Endosymbiotic hypothesis, Flagella were formed from:
a) Aerobic Bacteria
b) Anaerobic Bacteria
c) Archaeobacteria
d) Spirochete Bacteria

ANSWER:
d) Spirochete Bacteria






19. Selection acts directly on:
a) Genotype
b) The entire Genome
c) Phenotype
d) Each Allele

ANSWER:
c) Phenotype


20. Ozone is formed from:
a) Oxygen
b) Hydrogen
c) Carbon Dioxide
d) Nitrogen

ANSWER:
a) Oxygen