Biology MCQs Questions with Answers PDF

Biology MCQs Questions with Answers

Here you can get the best Multiple Choice Questions with Answer on Biology. This Objectives types questions help you for your biology competitive exam . Mainly Best for your NEET Preparation.

Also Read Chemistry MCQs

MCQ on Cell Biology

Biology MCQs Questions with Answers – 1

1. The organelle that used in the breakdown of organic matter?

(a) Lysosomes

(b) Cytoplasm

(c) Golgi bodies

(d) Mitochondria

Answer (a) Lysosomes

2. Which organelle involved in the synthesis of phospholipids.

(a) Mitochondria

(b) Cytoplasm

(c) Endoplasmic Reticulum

(d) Smooth Endoplasmic Reticulum

Answer (d) Smooth Endoplasmic Reticulum

3. The cell organelles that present in plants cells and absent in animal cells

(a) Nucleus

(b) Vacuole

(c) Chloroplast

(d) Cytoplasm

Answer (c) Chloroplast

4. True about chromosomes

(a) It is present within the nucleus

(b) Helps in inheritance

(c) It is composed of genetic material as Chromatin and protein

(d) All of the above

Answer (d) All of the above

5. The single membrane-bound organelle is

(a) Vacuole

(b) Golgi Apparatus

(c) Endoplasmic Reticulum

(d) All of the above

Answer (d) All of the above

6. The organelle that present in animal cells and absent in plant cells

(a) Nucleus

(b) Centrosome

(c) Golgi bodies

(d) All of the above

Answer (b) Centrosome

7. Choose the odd one on basis of membrane

(a) Chloroplast

(b) Mitochondria

(c) Endoplasmic Reticulum

(d) All of the above

Answer (c) Endoplasmic Reticulum

8. Golgi bodies relates to ?

(a)  a sac-like organelle

(b)  located near the nucleus

(c) It helps in transportation

(d) All of the above

Answer (d) All of the above

9. True about the Nucleus?

(a) Absent in prokaryotes

(b) The brain of the cell

(c) It contains both  DNA and other genetic materials.

(d) All of the above

Answer (d) All of the above

10. Suicidal bag refer to

(a) Lysosomes

(b) Golgi bodies

(c) Cell membrane

(d) Mitochondria

Answer (a) Lysosomes

11. Cell organelle that not found  in prokaryotic cells

(a) Nucleus

(b) Lysosome

(c) Endoplasmic Reticulum

(d) All of the above

Answer (d) All of the above

12. The cell organelles is involved in the storage of food

(a) Vacuoles

(b) Lysosome

(c) Mitochondria

(d) Cell membrane

Answer (a) Vacuoles

13. Cell organelles that absent in animal cells and present in a plant cell

(a) Cell wall

(b) Cytoplasm

(c) Vacuoles

(d) Mitochondria

Answer (a) Cell wall

14. Cell organelles without DNA

(a) Nucleus

(b) Lysosomes

(c) Chloroplast

(d) Mitochondria

Answer (b) Lysosomes

15. Statements that true about the cell wall

(a) it composed of lipid

(b) it composed of starch

(c) it composed of protein

(d) it composed of cellulose

Answer (d) it composed of cellulose

16. True statements about cell theory

(a) It does not apply to fungi

(b) It does not apply to virus

(c) It does not apply to algae

(d)Not valid to microbes

Answer (b) It does not apply to virus

17. The jellylike substance found floating inside the plasma membrane.

(a) Cell sap

(b) Cytoplasm

(c) Karyoplasm

(d) Mitochondria

Answer (b) Cytoplasm

18. powerhouse of the cell is

(a) Nucleus

(b) Lysosomes

(c) Chloroplast

(d) Mitochondria

Answer (d) Mitochondria

19. Cell organelles manage the entry and exit of molecules to and from the cell is

(a) Lysosomes

(b) Golgi bodies

(c) Cell membrane

(d) Mitochondria

Answer (c) Cell membrane

20. Founder of cell in 1965 is

(a) Robert Hooke

(b) Schwann

(c) Tatum

(d) De Bary

Answer (a) Robert Hooke

21. The cell theory is not work for

(a) Algae

(b) Virus

(c) Bacteria

(d) Fungi

Answer (b) Virus

22. Digestive bags refers to

(a) Nucleus

(b) Lysosomes

(c) Chloroplast

(d) Mitochondria

Answer (b) Lysosomes

23. Cell organelles contains RNA is

(a) Mitochondria

(b) Plastids

(c) Lysosomes

(d) Ribosomes

Answer (d) Ribosomes

24. The site of ribosome in a living cell

(a) Endoplasmic reticulum

(b) Golgi bodies

(c) Plasma membrane

(d) Nucleolus

Answer (d) Nucleolus

25. The cell organelle that considered as a cell within a cell?

(a) Chloroplast

(b) Ribosome

(c) Mitochondria

(d) Golgi complex

Answer (d) Golgi complex

MCQ on Genetics

Biology MCQs Questions with Answers – 2

1. The resemblance tendency of offspring to its parent is known as

(a) Variation

(b) Heredity

(c) Resemblance

(d) Inheritance

Answer  (b) Heredity

2. Father of Genetics is

(a) Morgan

(b) Mendel

(c) Watson

(d) Bateson

Answer  (b) Mendel

3. Gene alternatively exists in the form of

(a) Alternate type

(b) Recessive character

(c) Dominant character

(d) Allele

Answer (d) Allele

4. The genotypic ratio is shown by a monohybrid cross is

(a) 1:2:1

(b) 3:1

(c) 2:1:1

(d) 9:3:3:1

Answer (a) 1:2:1

5.Regarding the “law of segregation”, the true one is

(a) Law of segregation is the law of purity of genes

(b) Alleles separate during gametogenesis

(c) Segregation of factors is due to the segregation of chromosomes during meiosis

(d) All of the above

Answer (d) All of the above

6. In an individual  the Homozygosity and heterozygosity can be determined by

(a) Back cross

(b) Self-fertilization

(c) Test cross

(d) All of the above

Answer (c) Test cross

7. An exception to Mendel’s law is

(a) Independent assortment

(b) Linkage

(c) Dominance

(d) Purity of gametes

Answer (b) Linkage

8. Mendel use pee plant in his experiments because

(a) They were cheap

(b) They had contrasting characters

(c) They were available easily

(d) All of the above

Answer (b) They had contrasting characters

9. Which one of the following produces a phenotypic effect on mutation

(a) Muton

(b) Gene

(c) Recon

(d) Nucleic acid

Answer (a) Muton

10.Mendel’s findings were rediscovered by

(a) Correns

(b) De Vries

(c) Tschermark

(d) All

Answer (d) All

11. Alleles are

(a) Alternate forms of genes

(b) Linked genes

(c) Chromosomes that have crossed over

(d) Homologous chromosomes

Answer (a) Alternate forms of genes

12. The activity of one gene is suppressed by the activity of a non-allelic gene, the process is known as

(a) Pseudo-dominance

(b) Hypostasis

(c) Epistasis

(d) Incomplete dominance

Answer (c) Epistasis

13. Cystic fibrosis is

(a) Sex-linked recessive disorder

(b) Autosomal dominant disorder

(c) Autosomal recessive disorder

(d) Sex-linked dominant disorder

Answer (c) Autosomal recessive disorder

14. 9:7 ratio in the F2 generation indicates

(a) Incomplete dominance

(b) Co-dominance

(c) Epistasis

(d) Complementary interaction

Answer (c) Epistasis

15. The presence of  small amount of lethal mutation in the population due to

(a) Positive selection

(b) Negative selection

(c) Frequency-dependent selection

(d) Mutation-selection balance

Answer (d) Mutation-selection balance

16.The human blood group ABO with alleles IA IB i,can occur phenotypes

(a) 2

(b) 3

(c) 4

(d) 1

Answer (c) 4

17. All the possible combinations of male and female gametes can be calculate by using

(a) Bateson Square

(b) Mendel Square

(c) Punnett Square

(d) Mendel’s Cube

Answer (c) Punnett Square

18. The  pair of contrasting characters is

(a) Heterozygous

(b) Homozygous

(c) Codominant genes

(d) Allelomorphs

Answer (d) Allelomorphs

19. Which is not an outcome of Mendel’s Experiment?

(a) 3 tall 1 short plant

(b) 24 tall and 8 short plants

(c) 8 tall and 0 short plants

(d) 4 tall plants and 1 medium height plant.

Answer (d) 4 tall plants and 1 medium height plant.

20.  The part of genetic material (DNA) that provide the information for one protein is

(a) Nucleus

(b) Chromosomes

(c) Trait

(d) Gene

Answer (d) Gene

21.   Which of the following is not controlled by genes?

        1. Weight of a person

        2. Height of a person

(a) only 1

(b) only 2

(c) both 1 and 2

(d) sometimes 1 and sometimes 2

Answer (b) only 2

22.   What is the probability that the male progeny will be a boy?

(a) 50%

(b) 56%

(c) 47.43%

(d) It varies

Answer (a) 50%

23.   Who have a perfect pair of sex chromosomes?

(a) Girls only

(b) Boys only

(c) Both girls and boys

(d) It depends on many other factors

Answer (a) Girls only

24.   With whom you can associate theory of evolution?

(a) Charles Darwin

(b) Mendel

(c) Stanley miller

(d) Harold Urey

Answer (a) Charles Darwin

25.  Which of the following can be called a characteristic?

(a) Plants can photosynthesis

(b) We have 2 eyes

(c) Mango tree is multicellular

(d) All of these

Answer (d) All of these

26.   Homologous organ have

(a) Same structure, same function

(b) Different structure, different function

(c) Same structure, different function

(d) different structure, same function

Answer (c) Same structure, different function

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