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

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

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

A) phosphate and base molecules
B) sugar and base molecules
C) 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) 8
C) 0
D) 6
E) 2

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

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

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

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

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

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

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