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DNA pt 1
DNA pt 2
RNA
Chromosomes
Misc.
100
what does DNA consist of?
Pentose sugar (deoxyribose), nitrogenous base, and phosphate group
100
In base pairing what nucleotides form bonds?
A--T and C--G
100
Can RNA be genetic material?
yes
100
What type of chromosome consist of fragments of nucleic acid surrounded by proteins
Viral chromosome
100
What is chromatin?
a complex of DNA and chromosomal proteins
200
what is the difference between a nucleotide and a nucleoside?
nucleoside lacks a phosphate
200
nucleotides in one strand are connected via ________ bonds
phosphodiester
200
In RNA Thymine is replaced with _____
Uracil
200
Prokaryotic chromosomes are typically....
circular
200
What is a nucleosome
DNA bound around a histone
300
DNA always proceeds in the ________ direction
5'-3'
300
bases on opposite strands are connected via ______ bonds.
Hydrogen
300
What type of chromosome consist of linear double-stranded DNA molecule combined with protein
eukaryotic chromosome
300
Histones are ______ charged.
positively
400
What nucleotides are classified as bases?
adenine and guanine
400
What nucleotides consist of pyrimidines.
Cytosine and Thymine
400
Give 3 examples of how RNA differs from DNA
typically single stranded, uracil, ribose
400
Dispensable minor chromosomes found in prokaryotes
plasmids
400
What are the two types of chromatin
Euchromatin and Heterochromatin
500
DNA is antiparallel. What does that mean?
It replicates bidirectionally. The strands have opposite polarity.
500
Which bond is stronger, A---T OR C---G?
C---G
500
What are the three most common types of RNA
mRNA (messenger RNA), tRNA (transfer RNA), rRNA (ribosomal RNA)
500
Viral chromosomes can consist of double stranded RNA?
Yes
500
Give an example of facultative heterochromatin
barr body