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

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

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

A) phosphate and base molecules
B) base molecules
C) sugar and 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) 0
B) 4
C) 6
D) 2
E) 8

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

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

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

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

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

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

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) False
B) True

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