Question

1) Using the word bank - Conservative, anti-parallel, complementary, parallel, semi-conservative, please answer the questions.

A) One stand of DNA runs in the 3' to 5' direction. Its matching strand runs in the opposite direction, 5' to 3'. This is because 2 strands of DNA in a double-helix are:

B) According to Chargaff's rule, A always bonds to T and C always bonds to G. The bonding of base pairs is:

C) When DNA is replicated, the two original strands separate and are both used as templates to make a new strand. The 2 new stands of DNA produced are half-old and half-new. This type of replication is:

2A) The "backbone" or "primary structure" of nucleic acid polymers like DNA and RNA are chains of Sugars and Phosphate groups linked by __________ bonds.

B) The nitrogenous bases (A, T, C, G, U) attach to each other with __________ bonds.

Thanks.

Answer 1

One stand of DNA runs in the 3' to 5' direction. Its matching strand runs in the opposite direction, 5' to 3'. This is because 2 strands of DNA in a double-helix are anti parallel

B) According to Chargaff's rule, A always bonds to T and C always bonds to G. The bonding of base pairs is complementary

C) When DNA is replicated, the two original strands separate and are both used as templates to make a new strand. The 2 new stands of DNA produced are half-old and half-new. This type of replication is semi conservative

2A) The "backbone" or "primary structure" of nucleic acid polymers like DNA and RNA are chains of Sugars and Phosphate groups linked by phosphodiester bonds.

B) The nitrogenous bases (A, T, C, G, U) attach to each other with hydrogen bonds.