BIOLOGY ASSIGNMENT MOLECULES OF LIFE

BIOLOGY
ASSIGNMENT

Molecules Of Life

NAME : INTAN MARYAM DARLINA
MATRICS NUMBER: MS2113172645

PRACTICUM: H5T01A

Molecules Of Life

dna and rna protein carbohydrates lipids water

comparison between dna and rna

SIMILARITIES

BOTH ARE NUCLEIC ACID/POLYNUCLEOTIDE MADE UP OF MONOMERS CALLED NUCLEOTIDES.

DIFFERENCES

DNA RNA

- DNA IS A DOUBLE STRANDED. - A DOUBLE STRANDED.
- PENTOSE SUGAR IN DNA IS DEOXYRIBOSE. - PENTOSE SUGAR IN DNA IS DEOXYRIBOSE.
- NITROGENOUS BASES IN DNA ARE A,T,C,G. - NITROGENOUS BASES IN DNA ARE A,T,C,G.
- DNA IS RELATIVELY A LARGER MOLECULE. - DNA IS RELATIVELY A LARGER MOLECULE.
- DNA IS MORE STABLE AND PERMANENT. - DNA IS MORE STABLE AND PERMANENT
- THE RATIO OF A TO T AND G TO C IS ONE.

HOW TO CALCULATE THE PERCENTAGE OF CYTOSINE IF
A DNA MOLECULE CONTAINS 24% THYMINE.

DNA THYMINE ALWAYS PAIRS TOTAL PERCENTAGE OF GUANINE WITH
WITH ADENINE AND GUANINE ADENINE AND THYMINE WITH ADENINE

ALWAYS SAME CYTOSINE EQUALS TO 100% SO


GUANINE = CYTOSINE
24% THYMINE = ADENINE 24% PERCENTAGE OF CYTOSINE+GUANINE =
100% - 48% + 52%
TOTAL = 24 + 24 = 48%
PERCENTAGE OF CYTOSINE = 52/2 = 26%

DIFFERENTIATE BETWEEN DNA IN PROKARYOTIC CELLS
AND EUKARYOTIC CELLS

PROKARYOTIC DNA EUKARYOTIC DNA

- FOUND FREELY IN THE CENTRAL PORTION - FOUND WITHIN NUCLEUS.
OF THE CYTOPLASM. - OCCURS AS A LINEAR FORM OF DNA
- OCCURS AS A COVALENT CLOSED WITH TWO ENDS.
CIRCULAR FORMS A DNA. - THE SIZE OF DNA IS HIGHER THAN 1 pg.
- THE SIZE OF DNA IS LESS THA 0.1 pg IN A - INTRONS ARE PRESENT IN THE CODING
PROKARYOTE REGION OF DNA.
- INTRONS ARE ABSENT IN THE CODING - THE QUANTITY OF DNA IS HIGHER
REGION OF DNA THAN DNA IN PROKARYOTE.
- THE QUANTITY OF DNA IS
COMPARATIVELY LESS.

Thank You !!