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

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

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

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

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

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

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

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

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

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

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

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

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

A) True
B) False

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