Structure of DNA

What is the relationship between DNA and chromosomes?

• Chromosomes are made of DNA

• DNA is made up of chromosomes

Which of the following are parts of a nucleotide

• Sugar

• Phosphate

• RNA

• Potassium

• Nitrogenous Base

Which of the following bases pairs with adenine?

• Guanine
• Thymine
• Cytosine

Which of the following are reasons adenine bonds with thymine?

• They both have 2 hydrogen bonds

• One is positive and the other is negative

• They both are on the outer part of the DNA ladder

• One is a purine(large) an the other is a pyrimidine(small)

Which of the following gives DNA the ability to code for a such a diverse range of organisms?

• The different types of sugars

• Each protein has a different length of DNA that codes for it

• The sequence of the bases (A,T,C,G)

• DNA can be made up of any of the elements on the periodic table

Tags

NGSS.HS-LS1-1

NGSS.HS-LS4-2

Which of the following statements are true about DNA

• It is a double helix shape

• it has two strands attached together by hydrogen bonds between bases

• It is found in the nucleus of cells

• Each nucleotide that composes DNA is exactly the same

What did the Hershey-Chase Experiment teach us?

• The shape of DNA

• How DNA molecules vary person to person

• That DNA - not protein- is the genetic material

• That viruses are able to infect us with their genetic code

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NGSS.HS-LS1-1

In a particular strand of DNA, 20% of the bases are guanines. What % what you predict to be adenines?

What does DNA stand for?