Online MCQs Test – Inheritance – Biology 10th

1. All human contains two sets of:

23 chromosomes

26 chromosomes

21 chromosomes

27 chromosomes

2. Both helixes are complementary to each other which are held together by:

co-ordinate covalent bonds

ionic bonds

covalent bonds

hydrogen bonds

3. He published a book “Origin of Species” where he proposed the theory of Natural Selection.

Crick

Charles Darwin

Watson

John Mendel

4. It is the physical appearance of the trait on the basis of inherited genes.

Genotype

Phenotype

Recessive

Dominant

5. The exact duplication of DNA is called:

Replication

Transcription

Translation

Duplication

6. He is known as Father of Genetics.

John Mendel

Watson

Crick

Charles Darwin

7. The chemical material of a chromosome is called:

Chromeres

Chromatid

Chromatin

Chromonema

8. The process of copying DNA information to mRNA is called:

duplication

translation

transcription

replication

9. Alleles of a trait express in heterozygous condition and their expression get blended to produce new phenotype called:

partial dominance

incomplete dominance

None of these

incomplete dominance and partial dominance

10. If both parents donate different factors (allele) of a trait, the organism is: OR An individual having different factors of a trait called:

Heterologous

Heterozygous

Homozygous

Homologous

11. Each kind of organism has specific number of:

chromosomes

DNA

genes

gametes

12. This type of variation is considered as raw material for evolution.

continuous variation

discontinuous variation

genetic heritable variation

environmental variation

13. The characteristics of the offspring’s to resemble their parents is called:

inheritance

genetics

evolution

heredity

14. Tick the correct statement:

DNA (Deoxyribo Nucleic Acid) is made up of billions of units called Gent locus (loci).

The string of nucleosomes wraps up into high order coil is called Gent locus (loci).

Each chromosome is located at a specific position on the gene, called Gent locus (loci).

Each gene is located at a specific position on a chromosome, called Gent locus (loci).

15. Which is the correct statement?

Histone is positively charged while DNA is negatively charged

Histone and DNA both are positively charged

Histone and DNA both are negatively charged

Histone is negatively charged while DNA is positively charged

16. The differences in characters such as height, colour, etc. among individuals of same species ire called:

variations

evolution

heredity

inheritance

17. Two similar chromosomes in a cell which are similar in shape, size and position of centromere called:

homologous

arms

chromatids

homology

18. The outer part of the DNA helix made up of sugar and phosphate is called:

Upright

Phosphoester

Rungs

Nucleoprotein

19. If both the parents donate some factors of a character is called: OR An individual having the same factors (allele) of a trait called: