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

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

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

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

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

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

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

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

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

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

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

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) 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) True
B) False

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