Macromolecules/DNA In Forensics

Question 1

4 groups of macromolecules

Answer 1

Carbohydrates, lipids, proteins, nucleic acid

Question 2

How many molecules of DNA

Answer 2

46

Question 3

Building blocks of nucleic acids
Nucleotide
Nucleoside

Answer 3

Nucleotide- phosphate group, sugar, nitrogenous base
Nucleoside- base, sugar

Question 4

What are the Purines and describe them

Answer 4

Guanine and adenine
Double ringed carbon structures

Question 5

What are the Pyrimidnes and describe them

Answer 5

Cytosine, thymine, uracil
Single carbon ringed structures

Question 6

Name the sugars in DNA/RNA

Answer 6

DNA= deoxyribose pentose
RNA= Ribose pentose

Question 7

What is Chargaffs rule

Answer 7

%A=%T
%C=%G

Question 8

How many hydrogen bonds between A-T and C-G

Answer 8

A-T 2 hydrogen bonds
C-G 3 hydrogen bonds (stronger)

Question 9

What is a Codon

Answer 9

Three consecutive nucleotides
(eg AUG) in DNA or mRNA, constitute genetic code that translates nucleotide sequences into protein sequences

Question 10

What are STR (short tandem repeats)

Answer 10

1-6 base pair DNA sequences repeated in succession (eg AGAT)

Question 11

Name the stages involving information from DNA-RNA and RNA-Amino acids

Answer 11

DNA-RNA Transcription
RNA-Amino Acids Translation