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Index
»
Genetics_midterm_one
»
Chapter 1
»
Level 1
level: Level 1
Questions and Answers List
level questions: Level 1
Question
Answer
Genetic variation in a population (1%)
polymorphism
A colorized display of a replicated set of (human male) metaphase chromosomes
karyotype
Research showed that DNA (nucleic acid) is a carrier of genetic information in bacteria, not a protein
Avery, MacLeod, Maclyn, McCarty
Solid proof that DNA (not protein) is the genetic material by working with viruses
hershey and chase experiment
Double helix molecular model of DNA
watson and crick
enzymes, structure, transport, defense, hormones, cytoskeleton and cell mvt
Proteins act as
recessive mutation
A loss of function is
dominant
A gain of function is
Genes that are evolutionary related
homologous genes
Genes from different species that have ascended from a common ancestor
orthologs
homologous genes within the same species (ex: globin gene in humans)
paralogs
human genome project
when was the shotgun approach used?
a continuous DNA sequence reconstructed from overlapping DNA sequences that were derived by sequence analysis
what is a contig in high throughput sequencing aka shotgun approach
at the centromere
where is the C band?
q arm
which is the long arm of a chromosome?
paired homologs , chromomers (bands of condensed DNA) and puff regions (localized uncoiling)
polytene chromosomes
meiotic chromosomes (making egg and sperms) and chromomers
lampbrush chromosome
A-T rich regions (gene poor and heterochromatin)
what is a G band?
46
How many chromosomes do humans have
H2A, H2B, H3, H4
name all types of histones
allignement of the 8 histones
what are tetramers?
euchromatin (:
histone acetylation
heterochromatin ):
DNA methylation