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

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

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

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

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

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

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

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

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

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

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

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

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

A) True
B) False

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