A branch of biology which deals with the study of genes, genetic variation, and heredity in living organisms is called Genetics. The word Heredity is derived from the Latin word Hereditatem which means the condition of being an heir. It is the transmission of characters from the parents to the offspring. The physical basis of heredity are factors or genes which are passed from one generation to the next in the form of the chromosome. The chemical basis of heredity are DNA, genetic material present in the chromosome. So take this quiz and check your knowledge related to the terms used in genetics.
1. Characters or features of an individual is called....
A. Gene pool
B. Genome
C. Gene locus
D. Trait
2. Chemically gene is a linear segment of DNA called .......
A. Cistron
B. Allele
C. Gene pool
D. Gene locus
3. The two factors which occur on the same locus in the two homologous chromosomes and control the expression of a trait are called....
A. Recessive gene
B. Autosomal recessive
C. Genome
D. Allelomorphin
4. When both the genes responsible for a particular trait are identical, they are called......
A. Allele
B. Homozygous
C. Heterozygous
D. None of these
5. When both the genes of a character are unidentical, it is called _____ of that character.
A. Homozygous
B. Gene locus
C. Gene pool
D. Hybrid
6. The genes which express themselves in an individual in both homozygous and heterozygous form is called.....
A. Dominant genes
B. Recessive genes
C. Both of them
D. None of them
7. Which of the following is the portion of the chromosome representing a single gene?
A. Genome
B. Gene locus
C. Gene pool
D. Trait
8. Which of the following is a complete set of chromosome in which different genes are represented singly?
A. Gene locus
B. Gene pool
C. Genome
D. All of the above
9. A single genome is present in ______ cells.
A. Haploid
B. Diploid
C. Both
D. None of them
10. The sum total of all the genes present in an interbreeding population is called
A. Trait
B. Allele
C. Gene pool
D. Gene locus
11. Monohybrid cross is a cross between two organisms which is made to study the inheritance of a _______ character.
A. Double
B. Multiple
C. Triple
D. Single
12. Cross between two organisms which is made to study the inheritance of two characters is called.....
A. Monohybrid cross
B. Dihybrid cross
C. Trihybrid cross
D. None of these
13. In which generation, the offspring produced by crossing two genetically different parents?
A. First filial generation
B. Second filial generation
C. Third filial generation
D. None of them
14. The cross between F1 generation and any of the parent is called.....
A. Pure line
B. Test cross
C. Reciprocal cross
D. Back cross
15. The type of back cross when F1 generation is always crossed with recessive parents is called.....
A. Trihybrid cross
B. Reciprocal cross
C. Test cross
D. All of these
16. Which of the following is the reproduction by mating distantly related individuals?
A. Interbreeding
B. Outbreeding
C. Both of them
D. None of them
17. The external and internal manifestation of gene products in an organism is called .....
A. Phenotypic ratio
B. Genotypic ratio
C. Reciprocal cross
D. Test cross
18. The external manifestation of gene products bought to expression is called .....
A. Reciprocal cross
B. Genotypic ratio
C. Test cross
D. Phenotypic ratio
19. The cross involves the same trait but carried by sexes opposite to those of the original is called....
A. Test cross
B. Back cross
C. Reciprocal cross
D. Trihybrid cross
20. _________ is the reproduction by mating closely related individuals.
A. Inbreeding
B. Outbreeding
C. Reciprocal cross
D. Test cross
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