DNA structure and function

Question 1

phosphodiester bond in DNA

Answer 1

covalent bond between the 5’ phosphate group of one nucleotide and the 3OH’ group of another nucleotide… formed by condensation reaction and a water molecule is lost in the process

Question 2

how is genetic material organised in a cell

Answer 2

dna molecule is packaged into thread-like structures called chromosomes

chromosome -> DNA -> gene -> alleles -> nucleotides

Question 3

cytosine and guanine form

Answer 3

3 h bonds

Question 4

adenine and thymin/uracil

Answer 4

2 h bonds