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

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

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

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

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

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

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

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

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) 20 (10 pairs)
D) 46 (23 pairs)

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

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

A) True
B) False

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