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

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

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

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

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

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

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

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

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

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

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