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WorksheetsExam 1 basics
Total questions: 10
Worksheet time: 7mins
Why is DNA used as genetic material instead of RNA?
Deoxy= less oxygen; less reactive and more stable than RNA
RNA is used as genetic material
DNA has a double helix
DNA divides into chromosomes
What did the Griffith experiment with Streptococcus pneumoniae, bacteria that causes pneumonia conclude?
Information specifying virulence cannot pass from dead cells to live cells
Proteins called "transforming principles" were assumed molecules of transformation
Some genetic material was being transferred in what griffith called "transformation"
All cells died regardless of transformation
What are the differences between RNA and DNA
DNA contains phosphodiester bonds between adjacent nucleotides, and is configured in a double helix
RNA form hydrogen bonds with complementary bases on the opposite sugar-phosphate backbone
DNA is a polymer while RNA is a monomer
Some viruses use single-strand RNA as their genetic material
What is a major similarity of DNA and RNA
Both are used in the formation of gametes
Both consist of sugar, nitrogenous bases, and a phosphate backbone
Both use adenine, thymine, guanine, and cytosine as their bases
Both are able to configure into secondary structures
What is not true about prokaryotic chromosomes
Single celled organisms with a nucleoid (no membrane)
DNA is supercoiled into the nucleoid
Nucleus is membrane-bound
DNA is stored in circular chromosomes (plasmids)
Do viral chromosomes follow chargaffs rules?
Yes
No
DNA Pol 1 catalyzes the formation of what bond between 3’-OH of the deoxyribose (on the last nucleotide) and the 5’-phosphate of the dNTP?
Hydrogen bond
Phosphodiester bond
Covalent bond
Sugar-phosphate bond
Archibold Garrod and William Bateson studied a disease that showed the first link between heredity and enzymes. What is this disease called? (RNA P 9)
Ehler-danlos syndrome
hemophilia
alkaptonuria
albinism
What is the final product of transcription in eukaryotes
pre-mRNA
mRNA
tRNA
sNPS
In Beadle and Tatum's experiments with auxotrophic mutants, what amino acid were the Neurospora unable to synthesize? (RNA Proc 12)
Proline
Valine
leucine
Tryptophan
