REVIEW CHROMOSOMES (DNA)

Chromosomes are located at ....

• A

• D

• E

• F

The correct statement about chromosomes

• to carry basic genetic material

• always in pairs in cell

• contain DNA

• located at cell membrane

The correct statement about DNA characteristics

• double helix

• long strain

• contain ribose

• located at ribosomes

DNA consists of 3 components: phosphate, deoxyribose, and nitrogen base. Deoxyribose is shown by number

• 1

• 2

• 3

Which shows the correct complementary base pairing for DNA?

• Adenine-Guanine;

  Cytosine - Thymine

• Adenine-Cytosine;

  Guanine - Thymine

• Adenine-Thymine;

  Cytosine - Guanine

• Adenine-Cytosine;

  Thymine - Guanine

In a molecule of double-stranded DNA, the amount of Thymine present is always equal to the amount of

• adenine

• Cytosine

• Guanine

• Uracil

Cytosine bonds with ....

• Thymine

• Adenine

• Guanine

• uracil

The two sides of DNA held together by .... bonds

• hydrogen

• carbon

• oxygen

• phosphate

the two nucleotides of DNA bonds together by

• phosphate

• hdyrogen

• carbon

• oxygen

sections of DNA that code for a trait

• gene

• chromosome

• nitrogen base

• amino acids