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Hind II is a...

Hind II is a

A

polynucleotide

B

polypeptide

C

polysaccharide

D

bacterium

Text Solution

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Hind II**: Hind II is identified as a restriction endonuclease. This means it is an enzyme that cuts DNA at specific sequences. 2. **Nature of Hind II**: It is important to note that Hind II is a protein. Enzymes, including restriction endonucleases, are proteins that facilitate biochemical reactions. 3. **Analyzing the Options**: - **Option A: Polynucleotide** - This refers to a polymer of nucleotides, which makes up nucleic acids like DNA and RNA. This option is incorrect. - **Option B: Polypeptide** - This refers to a polymer of amino acids, which are the building blocks of proteins. Since Hind II is a protein, this option is correct. - **Option C: Polysaccharide** - This refers to polymers of monosaccharides, which are carbohydrates. This option is incorrect. - **Option D: Bacterium** - This refers to a single-celled organism. Since Hind II is an enzyme and not a living organism, this option is also incorrect. 4. **Conclusion**: The correct answer is that Hind II is a polypeptide (protein). **Final Answer**: Hind II is a polypeptide (protein). ---
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How many base pairs are present In DNA cut by endonuclease - Hind II ? (a) 2 (b) 4 (c) 6 (d) 8

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Knowledge Check

  • Read the following statements carefully and select the correct option :- (A) Source of the restriction enzyme Hind II is Haemophilus influenzae. (B) If any protein encoding gene is expressed in a heterologous host, it is called as recombinant protein (C) Microinjection method for injecting foreign gene is used for animal cell. (D) DNA primers are chemically synthesized oligonucleotides that are complementary to the regions of DNA in PCR. How many of the above statements are correct ?

    A
    Two
    B
    Three
    C
    Four
    D
    One

  • The restriction enzyme Hind II was isolated from bacterium

    A
    E. coli
    B
    Haemophilus indica
    C
    Haemophilus influenzae
    D
    Hibiscus indicus.

  • Restriction endonuclease Hind II always cuts DNA molecule at a particular point by recognising a specific sequence of

    A
    Six base pairs
    B
    Five base pairs
    C
    Four base pairs
    D
    Seven base pairs

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    Hind II always join DNA molecules at specific site by recognising a particular sequence of six base pairs.

    Select the correct option regarding restriction endonuclease P. 900 restriction enzyme have been isolated from over 200 strains. Q. The first restriction exonuclease was Hind II. R. Each restriction endonuclease recognises same palindromic sequence .

    Fill up the blanks : A. The construction of the first recombinant DNA emerged from the possibility of linking a gene encoding antibiotic resistance with a native____of _______. B. Hind II always cut DNA is a sequence of base that reads same on the two strands when orientation of reading is kept the same. C_____________, a pathogen of several dicot plants is able to deliver a pieceof DNA known as _to transform normal plant cells into tumor cells.

    How many statements are correct? (a) Hind II always cut DNA molecules at particular point by recognizing a specific sequence of 6 bases. (b)After the restriction endonuclease action, single stranded portions which are overhanging stretches called sticky ends because they form nucleotide bonds with their complementary cut counter part. (c)The separated bands of DNA are cut out from the agarosegel and extracted from gel piece. This step is known as spooling. (d)Taq polymerase is used between annealing and extension of r-DNA technology.

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