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Rosalind Franklin's "photo 51" was critical in helping Watson and Crick to discover what?

• The double helix structure of DNA

• X-Ray crystalography was a technology worth looking in to. 

• That stealing is a great way to get ahead in life

• That there could possibly be life on other planets. 

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NGSS.HS-LS1-1

Rosalind Elsie Franklin was a British chemist and X-ray crystallographer whose work was central to the understanding of the molecular structures of DNA.

Which TWO did she conclude from her X-rays?

• Amino acids are the building blocks of DNA.

• DNA is a helix.

• Nitrogenous bases are at the center of the molecule.

• DNA is over 3 meters long.

Which base pairs with cytosine in DNA?

• Adenine

• Thymine

• Guanine

• Uracil

Which of the following nucleotide bases pairs with adenine (A) in DNA?

• Cytosine (C)

• Guanine (G)

• Thymine (T)

• Uracil (U)

What can be seen through a microscope when the nucleus dissolves during cell division?

• Chromosomes

• Mitochondria

• Ribosomes

• Endoplasmic Reticulum

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NGSS.HS-LS1-4

What can cause mutations?

• Errors in DNA replication

• Exposure to mutagens

• Viral infection

• All of the above

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NGSS.HS-LS3-2

What is the primary function of DNA?

• To store genetic information

• To provide energy to cells

• To transport oxygen

• To catalyze biochemical reactions

Which enzyme is responsible for DNA replication?

• DNA polymerase

• RNA polymerase

• Helicase

• Ligase

What is the shape of the DNA molecule?

• Single helix

• Double helix

• Triple helix

• Quadruple helix

Identify the pairing and number of bonds in DNA double helix

• A pairs with T (2 bonds) & G pairs with C (3 bonds)

• A pairs with G (2 bonds) & T pairs with C (3 bonds)

• A pairs with T (3 bonds) & G pairs with C (2 bonds)

• A pairs with G (3 bonds) & T pairs with C (2 bonds)