Collect 5 examples of palindromic DNA sequences by consulting your teacher. Better try to create a palindromic sequence by following base -pair rules.

Find the correct palindromic sequence: 5'ATRGCAAT3'

Write 'True' or 'False': Hind II always join DNA molecules at specific site by recognising a particular sequence of six base pairs.

Name the palindromic nucleotide sequence for below given fragment of DNA :5' - G A A T T C -3'

Two questions consist of two statements each, printed as Assertion and Reason. While answering these questions, you required to choose any one of the following four responses. If both Assertion and Reason are true and Reason is a correct explanation of Assertion. If both Assertion and Reason are true and Reasons is not a correct explanation of Assertion. If Assertion is true but Reason is false. If both Assertions and Reasons are false. Assertion:Three main types of restriction endonucleases i.e., Type I, Type II and Type III are known with slightly different mode of action. Reason:In palindromes with rotational symmetry second half of complementary strand in DNA double helix is the mirror image of base sequence in the first half of another strand.

If one of the strands of DNA has the following sequence of bases running in the 5’-3’ direction : 5’-G-G-A-C-A-A-T-C-T-G-C-3' What is the sequence of bases in the complementary strand ?

CAUTION: This activity needs the teacher's assistance. It would be better if students wear suitable eyeglasses. • Clean a magnesium ribbon, about 3-4 cm Tong by rubbing it with sand paper. Hold it with a pair of tongs. Burn it using a spirit lamp or a burner and collect the ash so formed in a watch glass as shown in Fig. Burn the magnesium ribbon keeping it away as far as possible from your eyes. What do you observe ?

A small stretch of DNA strand that codes for a polypeptide is shown below: 3'----CAT CAT AGA TGA ATC… … …5' Which type of mutation could have occurred in each type resulting in the following mistakes during replication of the above original sequence?3' … … … …CAT ATA GAT GAA AC… … …5'

A small stretch of DNA strand that codes for a polypeptide is shown below: 3'----CAT CAT AGA TGA AAC… … …5' Which type of mutation could have occurred in each type resulting in the following mistakes during replication of the above original sequence? 3'... ... ... ...CAT CAT AGA TGA ATC... ... ...5'

If the base sequence of a codon mmRNA is 5' - AUC - 3', the sequence of tRNA pairing with it must be:

In the sequnece of nitrogen bases of the coding strand of DNA in a transcription unit is: 5' - A T G A A T G - 3', the sequence of bases in its RNA transcript would be: