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Genetic Material Test

Enter the letter for the matching Definition
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1.
scaffold proteins
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2.
ribose
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3.
nucleoid
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4.
methyl cytosine
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5.
histone
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6.
chromatin
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7.
NTP
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8.
chromosome
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9.
adenosine diphosphate
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10.
chromatin structure
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11.
complementary base pairng
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12.
radiolabelling
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13.
30 nm fiber
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14.
lamp brush chromosome
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15.
euchromatin
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16.
enzyme
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17.
supercoil
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18.
telomere
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19.
intergenic space
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20.
uracil
A.
a chemically modified version of cytosine that has an additional methyl (CH3) group added. This modification alters its ability to form hydrogen bonds and pair with other bases.
B.
group of positively charged proteins that bind to DNA. Involved in forming nucleosomes and other chromatin structure.
C.
a composite of DNA and protein that makes up a chromosome
D.
the ends of a linear chromosome composed of the same repeated telomere sequence that does not code for any RNA or protein.
E.
pyrimidine typically found in RNA but not DNA unless another base as been chemically altered.
F.
loops of 30 nm fibers coming off a core of scaffold protein. The typical chromatin structure during the majority of the life of the cell
G.
the organization and compaction of chromatin. Capable of change depending on how tightly the proteins are attached to the DNA and how much compaction has occurred.
H.
ADP, a nucleotide composed of ribose sugar, with adenine attached to 1' and two phosphates attached to 5'
I.
a double helix (as of DNA) that has undergone additional twisting in the same direction as or in the opposite direction from the turns in the original helix
J.
nucleoside tri phosphate, a generic collection of nucleotides with three phosphates attached to 5' of ribose sugar. Any base could be attached to 1' (AUCG)
K.
Less organized and compacted chromatin. Associated with areas of the chromosome actively expressed
L.
long strand of DNA double helix that may contain many genes. First identified as a "colored body" that appears in prophase of mitosis
M.
supercoiled non relaxed circular chromosome of prokaryotic organism, floating in the cytoplasm of the cell
N.
sequence of DNA on the chromosome in between individual genes
O.
when hydrogen bonds develop between nitrogenous bases. Responsible for Chargaff's rules
P.
growing an organism in the presence of a radioactive isotope, which results in the incorporation of that isotope into the molecules of the organism
Q.
formed when multiple nucleosomes aggregate together to form a higher level of chromatin organization.
R.
proteins which the 30 nm fiber attach to, forming a lamp brush chromosome.
S.
one of the pentose sugars found in nucleic acids, with an OH at 2'
T.
a protein that catalyzes a biochemical reaction
Type the Term that corresponds to the displayed Definition.
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21.
one type of secondary structure created by internal base pairing
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22.
the formation of hydrogen bonds between complementary bases in the same strand of nucleic acid
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23.
covalent bond that links amino acids into a chain forming a polypeptide. Extends from carboxy end of first amino acid to amino end of the second.
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24.
covalent bond that links nucleotides into a chain. Extends from 3' carbon to 5' carbon of next nucleotide in the chain.
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25.
monomeric subunit of nucleic acids
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26.
a large spatial gap between the two sugar phosphate backbones of a double stranded nucleic acid.
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27.
composed of a pentose sugar and a nitrogenous base
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28.
a collection of cells or other solid material at the bottom of a tube after centrifugation
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29.
one of the major classes of biomolecules
Type the Term that corresponds to the displayed .
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30.
the gap is not large enough to allow access to bases in the center of the DNA molecule. so it is not used for base sequence specific binding of proteins.

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