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

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

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

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

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

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

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

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

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

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

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

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

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) False
B) True

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