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) Circular
E) Double Helix

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

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

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

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

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

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

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

A) 23 (half that of a normal human cell)
B) 0 (there is no nucleus)
C) 92 (double a 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 chromosomes
D) Another name for DNA