Question

The karyotype of an organism is the chromosomal .......... of an organism.

• A. Genotype
• B. Phenotype
• C. Mutation
• D. None

Answer 1

The correct option is D None

The karyotype of an organism is the chromosomal analysis or complement of an organism. Karyotype reveals the number of chromosomes, the size of chromosomes and the banding pattern of the chromosomes present in an organism's genome. The karyotyping is done in order to find out the number of chromosomes and the size of chromosomes. Any abnormality in number and size will result in genetic abnormality, for example, the presence of three chromosomes for chromosome number 21 in humans reflect the Down's syndrome.

A. Genotype refers to the constitution of genes for different traits in an organism.

B. The phenotype is the physical manifestation of the genotype.

C. Mutation is the sudden and heritable changes in the DNA of an organism.

Hence, the correct answer is 'None'