Chromosomal anatomy Flashcards
If a SNP occurs within a gene, then the gene is described as having more than one:
Select one:
- allele.
* Version
* Variant
* Form
Variant
Highly repetitive DNA consists of simple sequences that are repeated up to a million times per genome.
1 question
Select one:
© True
O False
true
SNP is an acronym and stands for:
Select one:
* Single Nucleotide Phosphate
O Strong Nucleus Promotor
* Single Nuclear Polymorphism
* Single Nucleotide Polymorphism
single nucleotide polymorphism
DNA that does not contribute to the phenotype of the organism, but evolves to increase its own copy number in the genome is collectively referred to as:
Select one:
Transposing DNA
Junk DNA
Intronic DNA
Selfish DNA
Selfish DNA
A transposon physically hops from one genomic site to another
Select one:
True
* False
False
A pseudogene always lies next to the real gene from which it was derived.
Select one:
True
False
false
SNPs are not just associated with genes; they can also occur in noncoding regions of DNA.
Select one:
True
* False
true
CpG islands have all of the following characteristics, except:
Select one:
* They are typically highly methylated.
* They occur in clusters near the 5’ end of genes.
* They are found near gene promoters.
- They are protected from spontaneous deamination
They are typically highly methylated
Telomeres consist of a tandem repeat of the sequence TTAGGG
Select one:
-True
* False
true
A set of gene sequences that lie next to each other and are then repeated again and again ( maybe 200 times are referred to as ——-. Many of these are required
by a cell and therefore they are arranged as a single unit, and the unit then repeats itself start to end (tandem) over and over again.
Select one:
MiniSatellites
LINEs
VNTRs
Tandem Repeat Array
Tandem Repeat Array
What is the maximum number of alleles a SP can have?
Select one:
2
4
8
16
4
Telomerase is composed of:
Select one:
* Protein
* Protein & RNA
* RNA
* Glycosylated protein
protein and RNA
if more than _? _of a population does not carry the same nucleotide at a specific position in the DNA sequence, then this variation can be classified as a SP.
Select one:
1%
3%
5%
10%
1%
Multiple copies of rRNA genes are found in prokaryotic genomes and eukaryotic genomes. The numbers of these.
Select one:
* Are of equivalent numbers in prokaryotes and eukaryotes
* Are greater in prokaryotes than in eukaryotes
Are roughly six copies in the eukaryotic genome
Are greater in eukaryotes than in prokaryotes
Are greater in eukaryotes than in prokaryotes
A Pseudogene is a sequence that is:
Select one:
* recognizably similar to a functional gene
* has accumulated mutations during its evolution
* is non-functional
* All of the above
All of the above
