DNA, Genes & Genetics MCQs with Answers

A sudden change in the genetic material is called?

• A.Replication
• B.Transcription
• C.Translation
• D.Mutation

Prokaryotic genetic system contains ?

• A.Only DNA and no Histones
• B.DNA with Histones
• C.Only RNA and no Histones
• D.RNA with Histones

The movement of alleles among the populations is termed as ?

• A.Gene flow
• B.Genetic drift
• C.Mutation
• D.Natural selection

If 42 chromosomes are present in telophase of Meiosis II, how many chromosomes will be in each daughter cell?

• A.42
• B.21
• C.84
• D.63

Which of the following phase is designated by DNA replication and Chromosomes duplication?

• A.G1 phase
• B.S phase
• C.G2 phase
• D.M phase

Which animal was the first to be cloned successfully?

• A.Mouse
• B.Cow
• C.Sheep
• D.Dog

A human baby is similar to human beings. The property due to which similar characteristics are transmitted from parents to their young ones is termed as?

• A.Heredity
• B.Variation
• C.Mutation
• D.Evolution

If, on average, 46% of the loci in a species' gene pool are heterozygous, then the average homozygosity of the species should be _?

• A.46%
• B.100%
• C.23%
• D.54%

The observable traits of an individual are:

• A.Genotype
• B.Phenotype
• C.Karyotype
• D.Biotype

Past Paper MCQ

Which of the following enzymes is used to join Okazaki fragments in DNA replication?

• A.DNA helicase
• B.Primase
• C.DNA polymerase
• D.DNA ligase