What Characteristic Is Not Necessary For A Molecule That Is The Genetic Material


What Characteristic Is Not Necessary For A Molecule That Is The Genetic Material?

What characteristic is not necessary for a molecule that is the genetic material? It must perform the action associated with the phenotype. A key discovery leading to the structure of DNA was done by Chargaff.

What are the characteristics of a genetic material?

  • It must be stable.
  • It must be capable of being expressed when needed.
  • It must be capable of accurate replication.
  • It must be transmitted from parent to progeny without change.

Which is not the property of genetic material?

Stability is not a property of genetic material. Explanation: The genetic material of an organism should be stable and not change during the course of an organism or person’s lifetime. … Stability of the genetic material can also be inferred from the “transforming principle”.

What are the four characteristics of genetic material?

What are the four characteristics a Genetic Material Must Exhibit? Replication storage of information expression of information and variation by mutation.

What are the criteria for a molecule to be a genetic material?

A molecule that can act as genetic material must fulfill the following criteria:
  • It should be able to replicate.
  • It should be chemically and structurally stable.
  • It should provide scope for mutation that is required for evolution.
  • It should be able to express itself in form of genes.

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Which of the following is not a characteristic feature of genetic code?

Which of the following is not a feature of the genetic code? Explanation: The genetic code is non – ambiguous. This means that there is no ambiguity about a particular codon. A particular code will always code for the same amino acid wherever it is found.

How does the DNA molecule satisfy the characteristics of a genetic material?

DNA stores genetic information as a ‘triplet code’ and expresses its genetic information by transcription of mRNA and synthesis of proteins. These proteins not only control the structure of the cells but also control their metabolic activities by acting as enzymes.

Which is the not property of genetic code?

The genetic code is unambiguous as each genetic code is specific for only one amino acid that it codes for. 61 codons code for amino acids and 3 codons are stop codons. They do not code for any amino acids.

Why must the genetic material be a stable molecule?

Why must genetic material be a stable molecule? So replication can be accurate and genetic material can be passed from generation to generation.

Why protein is not the genetic material?

For a material to be genetic material it has to replicate it must be stable both structurally and chemically stable. Furthermore proteins are not the biological vehicle for heredity they do not pass heritable instructions from one to another generation. …

What are the criteria for a molecule to act as a genetic material class 12?

It should be able to generate its replica (replication). It should be chemically and structurally stable. It should provide the scope for slow changes (mutation) that required for evolution.

Why is DNA and not RNA the genetic material?


The difference between DNA and RNA explains the reason why DNA serves as the genetic material instead of RNA. … Hence DNA is proved to be less reactive chemically and more stable structurally than RNA. Thymine makes DNA more stable than RNA where it is substituted by uracil.

Which of the following is not associated with HGP?

Question : Which of the following is not associated with HGP-
Question Which of the following is not associated with HGP-
Chapter Name Genetics & Molecular Basis Of Inheritance And Mutation
Subject Biology (more Questions)
Class 12th
Type of Answer Video Text & Image

Which of the following is not a part of gene expression?

Which of the following does not take part in gene expression? Explanation: Replication is the coping of the gene in double but plays no role in the production of protein thus expression of gene.

Which of the following is not true to the nature of the genetic code Mcq?

Which of the following is not true to the nature of the genetic code? Explanation: Codons are non-overlapping in nature commaless and there is no punctuation mark between them. Codons are universal as well except mammalian mitochondria and some bacteria.

Which of the following is not a stop codon?

AUG is not a termination codon it is initiator codon.

What are different criteria for molecules to act as genetic material Why is DNA better genetic material than RNA?

DNA is located only in the nucleus of the cell while RNA is present in the cytoplasm as well. DNA being deoxyribose is a more stable molecule while RNA is more prone to hydrolysis. Thus increased stability gives DNA an edge over RNA for being the genetic material.

Why DNA is genetic material but protein is not explain with example?

Conclusion: Resultant radioactive and non-radioactive bacteria infer that the viruses that had radioactive DNA transferred their DNA to the bacteria but viruses that had radioactive protein didn’t get transferred to the bacteria. Hence DNA is the genetic material and not the protein.

What are the important features of the DNA molecule?

DNA has three types of chemical component: phosphate a sugar called deoxyribose and four nitrogenous bases—adenine guanine cytosine and thymine. Two of the bases adenine and guanine have a double-ring structure characteristic of a type of chemical called a purine.

What is wrong about genetic code?

An inaccurately transcribed DNA base can result in an mRNA codon with different identity and inaccurate decoding of mRNA codons at the ribosome can result in inappropriate amino acid insertion in a nascent peptide.

What is not true for genetic code 2009?

The genetic code is continuous and does not possess pause after the triplets. So a codon in RNA is a non-contiguous fashion. If a nucleotide is deleted or added the whole genetic code will read differently.

Which of the following is not a part of operon?

The structural genes in the lac operon activate specific enzymes for the metabolism of lactose. From the above information we have found that operon does not contain an enhancer in their structure. An enhancer has no specific role in the functioning of the operon. So the correct answer is option A.

Which is the genetic material that is highly stable?

DNA is more stable while RNA is more reactive.

Why is DNA structurally stable?

The main bonding in DNA which renders the double helix structure so stable is that of hydrogen bonds. Between the complementary base pairs hydrogen bonds connect the two strands of the helix. There are 3 H bonds between Guanine and Cytosine and 2 between Adenine and Thymine.

Is it biologically advantageous that RNA is unstable Why or why not?

Survival of a cell depends on the stability of DNA. Is it biologically advantageous that RNA unstable? Yes. The mRNA directs the synthesis of proteins required by the cell and it has to do this only as long as the cell has a requirement for that protein.

What is DNA genetic material?

Molecular genetics emerged from the realization that DNA and RNA constitute the genetic material of all living organisms. (1) DNA located in the cell nucleus is made up of nucleotides that contain the bases adenine (A) thymine (T) guanine (G) and cytosine (C). … The RNA molecules in cells have two main roles.

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Which of the following is not applicable to RNA?

This complementary base pairing is not possible in case of single stranded RNA molecule. Thus ChargafTs rules are not applicable to RNA.

Which of the following is not a difference between DNA and RNA?

The correct answer is (c) DNA contains alternating sugar-phosphate molecules whereas RNA does not contain sugars.

Can RNA be genetic material?

Our genetic material is encoded in DNA (deoxyribonucleic acid). DNA is famous. But you may also have also heard of RNA (ribonucleic acid). … In fact it is possible that early life used RNA as its genetic material and also used folded RNAs as chemical tools to survive.

Is DNA the only genetic material?

DNA is indeed a genetic material but not the “only genetic material” as in retroviruses it is the RNA which carry the genetic information………..and whatever there inside a cell in all organisms as well as even in the environment of the cell in multicellular organisms are as important as DNA.

Which are the human chromosome having highest and least number of genes in them?

Chromosome 1 has 2968 genes (maximum) while Y-chromosome has 231 genes (minimum).

Which non human model organisms are sequenced?

Many non-human model organisms such as bacteria yeast Caenorhabditis elegans (a free living non-pathogenic nematode) Drosophila (the fruit fly) Plants (rice and Arabidopsis) etc. have also been sequenced.

Which is the incorrect statement regarding HGP?

(4) 1.4 million locations are there with single base. DNA differences. Statement (2) is incorrect regarding Human Genome project. The correct statement is – It is less than 2 per cent of the genome codes for proteins.

What is needed for gene expression?

Gene expression is the process the cell uses to produce the molecule it needs by reading the genetic code written in the DNA. To do this the cell interprets the genetic code and for each group of three letters it adds one of the 20 different amino acids that are the basic units needed to build proteins.

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Evidence that DNA is genetic material 1 | Biomolecules | MCAT | Khan Academy

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