A) Phosphate groups
B) Bases
C) Nucleotides
D) Sugar Molecules

A) Acids, Bases and inorganic salts
B) G, T and C Bases
C) Phosphate groups, deoxyribose sugars and nitrogen rich bases
D) Genes and Chromosomes X and Chromosomes Y

A) Triangular
B) Rectangular
C) Double Helix
D) Circular
E) Single Helix

A) phosphate and base molecules
B) sugar and base molecules
C) base molecules
D) phosphate and sugar molecules

A) sugar molecule pairs
B) phosphate and sugar molecules
C) nitrogen-rich base pairs
D) phosphate and base molecules

A) 6
B) 2
C) 0
D) 8
E) 4

A) G
B) A
C) T
D) C

A) A
B) G
C) C
D) T

A) 4
B) 8
C) 0
D) 2

A) the gene
B) the nucleus of the cell
C) the DNA strand
D) the red blood cell

A) 50 (25) pairs
B) 46 (23 pairs)
C) 100 (50 pairs)
D) 20 (10 pairs)

A) 46 (same as a human cell)
B) 92 (double a human cell)
C) 23 (half that of a normal human cell)
D) 0 (there is no nucleus)

A) 23 (half that of a normal human cell)
B) 46 (same as a human cell)
C) 92 (double a human cell)
D) 0 (there is no nucleus)

A) False
B) True

A) Another name for DNA
B) A section of DNA that contains the genetic code
C) Half a chromosome
D) Another name for chromosomes