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

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

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

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

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

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

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

A) 4
B) 2
C) 0
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) 20 (10 pairs)
C) 50 (25) 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) 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) 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