In embryogenesis a type of structure with no vascular connection with the maternal callus tissue or explants is formed

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#Question id: 12725

#XL - S Microbiology

Match the following

DNA form	Helix Direction	Number of bases per helix turn
1. B	a. Left Handed	i. 10
2.  A	b. Right Handed	ii. 12
3.  C	c. Left Handed	iii. 14
4. Z	d. Right Handed	iv. 9

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#Question id: 12726

#XL - S Microbiology

Name the forms of DNA which have been derived under laboratory conditions.

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#Question id: 12727

#XL - S Microbiology

Name the form of DNA which may be produced with a DNA sequence made up from alternating purine and pyrimidine nucleotides.

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#Question id: 12728

#XL - S Microbiology

Name the type of RNA which folds up to give a cloverleaf secondary structure.

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#Question id: 12729

#XL - S Microbiology

When the two antiparallel strands of DNA are held together partly by the weak forces between complementary bases and partly by hydrophobic interaction between adjacent , stacked base pairs termed as_____

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#Question id: 12730

#XL - S Microbiology

A single strand of ____ ribonucleotides forms four double stranded stem regions by pairing the bases.