Restriction enzymes are used to cut from Biology NEET Year 2011

Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

61.

Which one of the following bacterium is used for production of transgenic plants

  • Escherichia coli

  • Bacillus thuringiensis

  • Staphylococcus aureus

  • Agrobacterium tumefaciens


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62.

Restriction enzymes are used to cut

  • single stranded RNA

  • double stranded DNA

  • single stranded DNA

  • double stranded RNA


B.

double stranded DNA

Restriction enzymes cut double stranded DNA molecules at specific sites called recognition sites that have specific base sequence. The restriction enzyme Eco RI, Bam II and Hind III are used in recombinant DNA technology to produce cuts in vector and other DNA molecules to obtain chimeric DNA.


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63.

Name the hormone that has no role in menstruation

  • LH

  • FSH

  • GH

  • TSH


64.

The gene of sickle cell anaemia is inherited by

  • blood cells

  • bone cells

  • sex chromosomes

  • autosomes


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65.

Which one of the following triplet codon is a chain termination codon?

  • UGU

  • AAU

  • UUG

  • UAG


66.

How many pairs of contrasting characters in pea pod were chosen by Mendel?

  • 3

  • 5

  • 7

  • 9


67.

If a cross between two individuals produces offsprings with 50% dominant character (A) and 50% recessive character (a) the genotype of parents are

  • Aa ×Aa

  • Aa ×aa

  • AA ×aa

  • AA ×Aa


68.

What will be the codons in mRNA if the DNA codes are ATG - CAG?

  • TAC - GTC

  • UAC - GUC

  • UCA - TUA

  • TCA - GTC


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69.

Which of the following species is restricted to a specific area?

  • Sibling species

  • Allopatric species

  • Sympatric species

  • Endemic species


70.

Which one of the following immunoglobulins is found as pentamer?

  • IgG

  • IgM

  • IgA

  • IgE


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