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

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

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

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

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

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

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

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

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

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

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

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

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

A) False
B) True

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