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

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

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

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

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

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

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

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

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

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

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

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

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

A) True
B) False

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