50 сурак

What is the full name for DNA?

• nucleic acid

• ribonucleic acid

• deoxyribonucleic acid

• folic acid

What is the smallest structural and functional unit of an organism?

• keratin

• cell

• nucleotide

• bacteria

How many chromosomes are there in nearly every one of your body’s cells

• Human cells contain 23 pairs of chromosome - 46 chromosomes in total

• Human cells contain 23 pairs of chromosome - 48chromosomes in total

• Human cells contain 23 pairs of chromosome - 26 chromosomes in total

• Human cells contain 23 pairs of chromosome - 16 chromosomes in total

Show correct article: Paris is … capital of France?

• An

• –

  
  

• A

• The

Choose which article is correct: What did you have for … breakfast?

• The

• A

• –

  
  

• An

Complete the sentence with article: In Britain … coffee is more expensive than … tea?

• -/a

• -/-

• an/an

• the/the

Who discovered DNA in 1869

• James Watson

• Maurice Wilkins

• Friedrich Miescher

• Rosalind Franklin

When Friedrich Miescher discovered DNA in ____

• 1879

• 1867

• 1869

• 1800

Which is correct: DNA is a double-helix molecule built from four nucleotides: 

• adenine (A), thymine (T), guanine (G), and fytosine (F)

• adenine (A), thymine (T), guanine (G), and cytosine (C)

• adenine (A), thymine (T), quanine (Q), and cytosine (C)

• adenine (A), dymine (T), guanine (G), and cytosine (C)

Choose correct answer: _______is a science that studies the composition of matter and the changes in matter

• Art

• Chemistry

• History

• Biology