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

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

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

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

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

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

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

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

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

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) 100 (50 pairs)
D) 20 (10 pairs)

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

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

A) False
B) True

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