Genetics 1: DNA, Chromosomes, and Genome Quiz Stats

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Clue Answer % Correct
Nucleic acid is synthesized in the _'-to-_' direction5 3
65.9%
Nucleic acid is read in the _'-to-_' direction3 5
61.5%
The class of two-ringed nitrogenous bases are the:purines
58.5%
The sections of DNA that are removed during mRNA processing are exons/introns, and are of constant/variable lengthintrons variable
53.7%
The ends of chromosomes are:telomeres
53.7%
The class of single-ringed nitrogenous bases are the:pyrimidines
52.7%
The middles of chromosomes are:centromeres
51.2%
If one strand of DNA in a particular region has high guanine content, its complementary strand has high ______ content, a higher/lower denaturing temperaturecytosine higher
46.8%
The sections of DNA that are spliced together during mRNA processing are exons/introns, are of constant/variable length, and are more/less abundant than the excised sectionsexons constant less
46.3%
These are the two sugars found in nucleic acids:deoxyribose ribose
45.4%
The SPECIFIC nitrogenous bases which are double-ringed are:adenine guanine
42.9%
Choose one from each set: A-DNA is left/right-handed, is more/less relaxed than B DNA, and does/does not interconvert readily with B-DNAright less relaxed does
36.1%
Continuation of Part X: The aforementioned DNA would have tighter/looser base-pair covalent/hydrogen interactions.tighter hydrogen
35.6%
Continuation of Part A: these changes do/do not include DNA methylation, and do/do not include transposon jumpingdo do not
34.1%
Clue Answer % Correct
These are the basic components of any nucleotidebase phosphate sugar
32.2%
In 'beads-on-a-string', each individual bead is called a ________, and consists of DNA wrapped around proteins called ______, which have been highly/poorly conserved in evolutionnucleosome histones highly
31.7%
Out of the three DNA forms discussed in class, the 'special' one is _____; it is left/right-handedZ-DNA left
31.2%
These are the basic components of any nucleosidebase sugar
27.8%
The linkages between consecutive monomers in the nucleic acid's backbone are:phosphodiester bonds
27.3%
The SPECIFIC nitrogenous bases which are single-ringed are:cytosine thymine uracil
26.3%
Inherited changes in gene expression that are NOT due to changes in the underlying DNA sequence are collectively referred to as _______, and do/do not include base-pair deletionsepigenetics do not
25.4%
Two things that can be used to denature DNA are ____ and ____salt heat
23.9%
This topological feature of DNA is due to steric strain, and contributes the energy used to do compact packingsupercoiling
23.9%
If a DNA sequence can fold in at its midpoint and bind to itself, it is a:palindrome
22.4%
If the left and right sections of a DNA sequence are reflections of one another, the sequence is a:mirror repeat
18.5%
Changes in DNA linking number are catalyzed by enzymes called ____________ in an ATP-dependent/independent processtopoisomerases ATP-dependent
12.2%
Genes are sections of a ______ that code for a specific ______chromosome phenotype
8.3%
Rank the following terms regarding DNA compactification in order of INCREASING size: 30 nm fiber, beads-on-a-string, chromatid, coil, loop, rosette.beads-on-a-string 30 nm fiber loop rosette coil chromatid
6.8%

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