Identify correct order of organisation ofgenetic material from largest to smallest.

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5.Molecular Basis of Inheritance

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Identify the correct order of organisation ofgenetic material from largest to smallest.

Genome, chromosome, gene, nucleotide

Chromosome, genome, nucleotide, gene

Chromosome, gene, genome, nucleotide

Genome, chromosome, nucleotide, gene

(NEET-2015)

Solution

(a) : In genome all the genes are contained in a single set of chromosomes. The instructions in our genome are present in the form of $DNA$. $DNA$ has a complicated structure in the form of a double helix. Single strands of $DNA$ are coiled up into structures called chromosomes. Within the chromosomes, segments of $DNA$ are “read” together to form genes. Thus, a gene is a segment of $DNA$ or chromosome situated at a specific locus (gene locus) which carries coded information associated with a specific function and can undergo crossing over as well as mutation. A nucleotide is the basic unit of $DNA$ made up of a pentose sugar, phosphoric acid and a nitrogenous base.

Standard 12

Biology

Which of the following statements are correct?

$i. r-RNA$ provides the template for synthesis of proteins.

$ii.$$ t-RNA$ brings amino acids and reads the genetic code.

$iii. $$RNA$ polymerase binds to promoter and initiates transcription.

$iv. $A segment of $DNA$ coding for polypeptide is called intron.

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Which one of the following is wrongly matched?

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(NEET-2014)

$A$ : Polypeptide sequences are dictated by $DNA$ and represented by $mRNA$.
$R$ : Sequence of amino acids in a polypeptide can be predicted by the exact sequence of nucleotides on the $mRNA$ and template $DNA$

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Arrange them on the basis of increasing size:

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(AIIMS-2019)

Consider the following

1.Structural gene

2.Messenger $RNA$

3.Ribosomes

4.Transcription

5.Translation

Which of the following is the correct sequence for protein synthesis

medium

Identify the correct order of organisation ofgenetic material from largest to smallest.

Solution

Similar Questions

Which one of the following is wrongly matched?

$A$ : Polypeptide sequences are dictated by $DNA$ and represented by $mRNA$. $R$ : Sequence of amino acids in a polypeptide can be predicted by the exact sequence of nucleotides on the $mRNA$ and template $DNA$

Arrange them on the basis of increasing size:

Consider the following 1.Structural gene 2.Messenger $RNA$ 3.Ribosomes 4.Transcription 5.Translation Which of the following is the correct sequence for protein synthesis

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$A$ : Polypeptide sequences are dictated by $DNA$ and represented by $mRNA$.
$R$ : Sequence of amino acids in a polypeptide can be predicted by the exact sequence of nucleotides on the $mRNA$ and template $DNA$

Consider the following

1.Structural gene

2.Messenger $RNA$

3.Ribosomes

4.Transcription

5.Translation

Which of the following is the correct sequence for protein synthesis