Ans. Gene is defined as the segment of DNA that gives a functional product (protein, RNA). A functional product can be either protein (or polypeptide) or RNA. mRNA transcribes from a gene is further translated to produce polypeptides. However, all other RNAs are also transcribed from their respective genes. It includes tRNA, rRNA, snRNA and various regulatory RNAs (micro RNA, small interfering RNA), etc. tRNA acts as amino-acid carrier during translation. rRNA is the structural and functional scaffold of ribosomes. snRNA mediates splicing of immature mRNA. miRNA and siRNA have crucial roles in gene regulations. SO, polypeptides are just one class of functional product from DNA. The genomic DNA also produces various classes of RNAs with diverse functions that are crucial for cellular activates and gene regulation. Therefore, the statement “Add DNA sequences in the genome that does not encode polypeptides can be defined as junk DNA” is INCORRECT. Junk DNA is non-coding DNA that excludes all genes (including those encoding polypeptides and RNAs). Solution Ans. Gene is defined as the segment of DNA that gives a functional product (protein, RNA). A functional product can be either protein (or polypeptide) or RNA. mRNA transcribes from a gene is further translated to produce polypeptides. However, all other RNAs are also transcribed from their respective genes. It includes tRNA, rRNA, snRNA and various regulatory RNAs (micro RNA, small interfering RNA), etc. tRNA acts as amino-acid carrier during translation. rRNA is the structural and functional scaffold of ribosomes. snRNA mediates splicing of immature mRNA. miRNA and siRNA have crucial roles in gene regulations. SO, polypeptides are just one class of functional product from DNA. The genomic DNA also produces various classes of RNAs with diverse functions that are crucial for cellular activates and gene regulation. Therefore, the statement “Add DNA sequences in the genome that does not encode polypeptides can be defined as junk DNA” is INCORRECT. Junk DNA is non-coding DNA that excludes all genes (including those encoding polypeptides and RNAs)..

1. Ans. Gene is defined as the segment of DNA that gives a functional product (protein, RNA). A
functional product can be either protein (or polypeptide) or RNA.
mRNA transcribes from a gene is further translated to produce polypeptides. However, all other
RNAs are also transcribed from their respective genes. It includes tRNA, rRNA, snRNA and
various regulatory RNAs (micro RNA, small interfering RNA), etc. tRNA acts as amino-acid
carrier during translation. rRNA is the structural and functional scaffold of ribosomes. snRNA
mediates splicing of immature mRNA. miRNA and siRNA have crucial roles in gene
regulations.
SO, polypeptides are just one class of functional product from DNA. The genomic DNA also
produces various classes of RNAs with diverse functions that are crucial for cellular activates
and gene regulation.
Therefore, the statement “Add DNA sequences in the genome that does not encode polypeptides
can be defined as junk DNA” is INCORRECT. Junk DNA is non-coding DNA that excludes all
genes (including those encoding polypeptides and RNAs).
Solution
Ans. Gene is defined as the segment of DNA that gives a functional product (protein, RNA). A
functional product can be either protein (or polypeptide) or RNA.
mRNA transcribes from a gene is further translated to produce polypeptides. However, all other
RNAs are also transcribed from their respective genes. It includes tRNA, rRNA, snRNA and
various regulatory RNAs (micro RNA, small interfering RNA), etc. tRNA acts as amino-acid
carrier during translation. rRNA is the structural and functional scaffold of ribosomes. snRNA
mediates splicing of immature mRNA. miRNA and siRNA have crucial roles in gene
regulations.
SO, polypeptides are just one class of functional product from DNA. The genomic DNA also
produces various classes of RNAs with diverse functions that are crucial for cellular activates
and gene regulation.
Therefore, the statement “Add DNA sequences in the genome that does not encode polypeptides
can be defined as junk DNA” is INCORRECT. Junk DNA is non-coding DNA that excludes all
genes (including those encoding polypeptides and RNAs).