Satellite DNA is important because it:
Codes for essential proteins
Plays a role in chromosome structure and function
Regulates gene expression directly
Is primarily found in euchromatin
Related Questions
A forensic scientist is comparing DNA samples from a crime scene. The analysis focuses on specific repetitive sequences that vary greatly between individuals. These sequences are known as:
VNTRs
SNPs
Restriction sites
Coding sequences
In the polymerase chain reaction (PCR), a high temperature is crucial at the beginning. If this temperature is not reached, which of the following events will be directly and primarily compromised?
DNA strand separation
Primer annealing
DNA polymerase activity
Nucleotide addition
DNA strands on a gel stained with ethidium bromide, when viewed under UV radiation, appear as:
Dark red bands
Bright blue bands
Light yellow bands
Bright orange bands
In DNA fingerprinting, the unique banding pattern of an individual is due to the:
Sequence of the entire genome
Different lengths of VNTRs
Number of chromosomes
Type of restriction enzymes used
Which of the following is NOT a key component of current DNA fingerprinting techniques?
Restriction endonucleases
Gel electrophoresis
Southern blotting
Polymerase chain reaction (PCR)
A researcher is visualizing DNA fragments on an agarose gel. After staining with ethidium bromide and exposing to UV light, what color will the DNA bands appear?
Blue
Green
Orange
Red
DNA fingerprinting refers to
Molecular analysis of profiles of DNA samples
Analysis of DNA samples using imprinting device
Techniques used for molecular analysis of different specimens of DNA
Techniques used for identification of fingerprints of individuals
If the initial denaturation step of a PCR reaction is performed at a temperature significantly lower than optimal, what will be the immediate consequence?
The DNA template will not fully denature.
The primers will anneal to the wrong locations.
The DNA polymerase will be denatured.
The reaction will proceed normally, but at a slower rate.
Identify the correct statements
One approach focused on identifying all the genes that expressed as RNA-sequence annotation
Second approach of simply sequencing the whole set of genomes that contained all the coding and non-coding sequence expressed sequence tags
Sequence annotation – correlating sequence of nucleotides already known for an organism to their functions
For sequencing the total DNA from is isolated and converted into random fragments of relatively bigger sizes
In gel electrophoresis, separated DNA fragments can be visualized with the help of:
Acetocarmine
Aniline blue
Ethidium bromide
Eosin
