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

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

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

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

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

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

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

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

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

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

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

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

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

A) False
B) True

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