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

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

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

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

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

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

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

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

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

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

A) 46 (23 pairs)
B) 50 (25) pairs
C) 100 (50 pairs)
D) 20 (10 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) 92 (double a human cell)
B) 46 (same as a human cell)
C) 23 (half that of a normal human cell)
D) 0 (there is no nucleus)

A) True
B) False

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