Question

The functional unit of DNA molecules that codes for a particular gene product is.
a. Cistron
b. Exon
c. Intron
d. Gene

Answer 1

The translation is the process in which Synthesis of the protein that’s codon on the DNA and present in the cistron region. Polycistronic region known for the number of polypeptides and monocistronic region known for encodes the single polypeptide in the mRNA region.

Complete answer:
DNA is made up from genes that’s functional and basic unit of heredity of the gene. . And proteins are also made from the molecule by the process known as translation. Every person had two copies of the genes that they inherited from their parents. Mostly all the genes present in the people are the same but the number of few genes are present differently in the human body. For example cystic fibrosis arises due to the defect in the gene on chromosome 7.

Cistron is the functional unit of the gene. Cis trans test and loci within a genome used to emphasize the specific gene behavior with the help of the cistron. DNA is made up of nucleotides and contains phosphate group, nitrogen bases and sugar group. The four types of the nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). This bases encodes According to the DNA genetic code and if any nucleotides added during the process it cause maturation in the newly obtained DNA.

Hence, the correct answer is option (A).

Note: The alternative form of the gene known as “cistron”. Particular gene and genetic marker located in the position of the chromosomes on the specific locus. Each gene carries a different position and locus in the human body. Complementation test is also performed by the cistron to obtain the result two strains of an organisms have different homozygous recessive mutations that obtain the same mutant phenotype.