A VNTR locus reveals two alleles with repeat lengths of 7 and 9 units. A mother homozygous for the 7-unit allele and a father heterozygous for the 7 and 9-unit alleles have a child. What is the probability that this child will exhibit a single band upon Southern blotting after probing for this VNTR locus?
0%
25%
50%
75%
Related Questions
In gel electrophoresis, what is the purpose of staining DNA with a fluorescent dye like ethidium bromide?
To separate the DNA fragments
To visualize the DNA fragments
To purify the DNA fragments
To amplify the DNA fragments
What are the differences in the specific regions of DNA sequence called during DNA finger printing
Non repetitive DNA
Repetitive DNA
Satellite DNA
Histone DNA
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
In gel electrophoresis, separated DNA fragments can be visualized with the help of:
Acetocarmine
Aniline blue
Ethidium bromide
Eosin
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
VNTR analysis involves
Analyzing specific loci for two base repeating units usually less then 100 bp in size
Analyzing specific loci for 2-4 bp repeating units
PCR amplification of specific genes
Cutting DNA with restriction enzyme and analyzing the banding pattern of fragments
DNA fragments separated on an agarose gel can be visualized after staining with:
Acetocarmine
Aniline blue
Eosin
Ethidium bromide
A researcher is analyzing DNA fragments using gel electrophoresis. The gel is submerged in a buffer solution and a current is applied. After the separation, the researcher adds a solution to the gel and views it under UV light. What is the purpose of the added solution?
To provide conductivity to the gel
To denature the DNA fragments
To stain the DNA fragments for visualization
To apply an electric current to the gel
Which of the following is not required for any of the techniques of DNA fingerprinting available at present?
Polymerase chain reaction
Zinc finger analysis
Restriction enzymes
DNA – DNA hybridization
