BIO111 Section 9.1

Who proposed that DNA is made up of two strands that are twisted around each other to form a right-handed helix, known as a double helix?

• Rosalind Franklin and Maurice Wilkins

• James Watson and Francis Crick

• Linus Pauling and Robert Corey

• Gregor Mendel and Thomas Hunt Morgan

In DNA base-pairing, which base does adenine pair with?

(a)  

• Guanine

• Cytosine

• Thymine
• Uracil

In DNA base-pairing, which base does guanine pair with?

(a)  

• Adenine

• Thymine

• Cytosine
• Uracil

What is the primary function of the packing strategy of DNA in eukaryotes?

• To fit their DNA outside the nucleus

• To replicate the DNA

• To fit their DNA inside the nucleus

• To transcribe the DNA

Who was the first to capture the X-ray diffraction pattern of DNA (i.e., the first person to take a photo of DNA)?

• Isaac Newton
• Albert Einstein
• Marie Curie
• Rosalind Franklin

All of these make up DNA nucleotides EXCEPT

(a)  

• phosphate group

• deoxyribose

• nitrogenous base

• lipids

Base pairing rules are known as

RNA nucleotides contain all these nitrogenous bases EXCEPT

• Thymine
• Guanine
• Cytosine
• Adenine

This nucleotide is only found in RNA

In RNA, uracil pairs with which nucleotide?

(a)  

• adenine
• thymine
• cytosine
• guanine