Home
Class 12
BIOLOGY
Genetic code consists of : {:(1. "m- ...

Genetic code consists of `:`
`{:(1. "m- RNA",,,,2. "Iysosome"),(3. "cytosine and uracil",,,,4. "adenine and guanine"):}`
Answer codes `:`

A

1 and 2 are correct

B

3 and 4 are correct

C

1 and 3 are correct

D

1,2, and 3 are correct

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • TRANSCRIPTION AND TRANSLATION

    GRB PUBLICATION|Exercise GENETIC CODE|65 Videos

  • THE GENETIC MATERIAL

    GRB PUBLICATION|Exercise DNA REPLICATION|136 Videos

Similar Questions

Explore conceptually related problems

How many of the following are formed on hydrolysis of DNA Deoxyribose, ribose, cytosine, uracil, guanine, adenine, thymine, phosphoric acid

Nucleic acids are the biopolymers in which the repeating structural monomeric units is a nucleotide. The nucleotides structural monomeric unit is a nucleotide. The nucleotides consist of three components, a pentose sugar (D-(0)-" ribose or 2 - deoxy "-D-(-)-"ribose, heterocyclic base") , (purines i.e., adenine and guanine and pyrididines i.e., thymine, cytosine and uracil) and phosphoric acid. Sugar - base constitutes nucleosides. the two types of nucleic acids are DNA and RNA. Nucleic acids play significant role in replication and protein synthesis. Adenine and thymin are joined by stronger hydrogen bonds than guanine and cytosin. Is it true or false?

Here are some correct and some wrong statements. Correct only those statements which are wrong: (a) The genetic code is universal. (b) The genetic code is ambiguous. (c) The genetic code is regenerate. (d) Transfer RNA (tRNA) carry amino acids to mRNA codons and used again and again in transcription. (e) UAA, UAG and UGA are terminator codon. (f) Lac operon consists of regulatory genes, operator gene, structural and promoter gene.

Study the following statements about Adamsia and select your answer from the answer codes: 1. It is a parasite 2. It is an example of commensalims 3. It is called sea anemone 4. It is called hermit crab Answer codes :

Types Of RNA and Genetic code

A biologist studying the genetic code is interested to know the number of possible arrangements of 12 molecules in a chain. The chain contains 4 different molecules represented by the initials A(for a Adenine), C (for Cytosine), G (for Guanine) and T (for Thymine) and 3 molecules of each kind. How many different such arrangements are possible?

Read the below Statements about the structure of genetic material and identify the correct ones. I. Adenine and guanine are bases that have a double ring structure , cytosine, thymine and uracil are based with a single ring structure . II. An adenine nucleotide from DNA is the same as an adenine nucleotide from RNA , DNA adenine pairs with uracil and RNA adenine pairs with thymine. III. The base pairing that occurs in a double DNA helix and when RNA is synthesised during transcription follows the rule that a purine pairs with a pyrimidine. IV. The two Polynucleotides on a DNA molecule run in opposite directions so that the double helix formed has two strands that are parallel to each other.

GRB PUBLICATION-TRANSCRIPTION AND TRANSLATION-TRANSLATION
  1. Which one of the following pair of codons is correctly mathed with fu...

    Text Solution

    |

  2. The sequence of events mentioned below are symbolized by alphabets. Ch...

    Text Solution

    |

  3. Genetic code consists of : {:(1. "m- RNA",,,,2. "Iysosome"),(3. "cy...

    Text Solution

    |

  4. Terminating codons are also called :

    Text Solution

    |

  5. A phenomenon where the third base of t-RNA at its 5' end can pair with...

    Text Solution

    |

  6. What is not true for genetic code

    Text Solution

    |

  7. Which one is referred to as soluble RNA ?

    Text Solution

    |

  8. Which one of the following nitrogenous bases is seen only in RNA ?

    Text Solution

    |

  9. Transcription of genetic code occurs from DNA molecule to a

    Text Solution

    |

  10. mRNA direct the building of proteins through a sequience of

    Text Solution

    |

  11. Whate would be the corrcct base sequence in mRNA for the given DNA str...

    Text Solution

    |

  12. From bacteria to men nearly universal code for phenylalanine is :

    Text Solution

    |

  13. During transcription, the site of DNA molecule at which RNA polymerase...

    Text Solution

    |

  14. The number of stop codons which do not code for any amino acid is :

    Text Solution

    |

  15. Which one is not the nonsense codon ?

    Text Solution

    |

  16. Which of the follownig codons has no t-RNA ?

    Text Solution

    |

  17. The number of triplet codons having all the three bases same in 64 tri...

    Text Solution

    |

  18. Select the correct bases of DNA, RNA and amino acid of beta chain resu...

    Text Solution

    |

  19. What is not true for genetic code

    Text Solution

    |

  20. Assertion : A monocistronic mRNA can produce several types of polypepi...

    Text Solution

    |