DNA, Genes & Genetics MCQs with Answers

If a man is color blind and marries a normal woman, what will be correct?

• A.100% of females will be carrier and 100% males will be normal
• B.50% of females will be carrier and 50% males will be color blind
• C.100% of females will be color blind and 100% males will be normal
• D.50% of females will be normal and 50% males will be carrier

The greater amount of DNA in a cell of an individual shows that it is _?

• A.Highly evolved organism
• B.Primitive organism
• C.Unicellular organism
• D.Prokaryotic organism

The base pairing rule in DNA was discovered by?

• A.Rosalind Franklin
• B.James Watson
• C.Francis Crick
• D.Erwin Chargaff

Why is Drosophila used in classical genetics?

• A.Short life cycle and easy to culture
• B.Large number of offspring per mating
• C.Only four pairs of chromosomes with giant salivary gland chromosomes
• D.All of these

The types of nucleotides present in a DNA molecule are ?

• A.Two
• B.Three
• C.Four
• D.Five

The phenotypic characters which vary along a continuum in a population are termed as ?

• A.Continuous characters
• B.Discontinuous characters
• C.Meristic characters
• D.Qualitative characters

Chromosome is typically made up from a combination of?

• A.DNA and carbohydrate
• B.RNA and lipid
• C.DNA and protein
• D.RNA and protein

Genes are made up of which molecule?

• A.RNA
• B.Protein
• C.DNA
• D.Carbohydrate

If allele frequency for a dominant allele is 0.4, what will be number of heterozygous individuals if population is of 100 individuals with diploid traits?

• A.36
• B.48
• C.16
• D.60

The genetic material of chromatin is ?

• A.DNA
• B.RNA
• C.Protein
• D.Lipid