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When a forensics laboratory tests evidence collected at the scene of a crime using the "DNA Fingerprinting" technique, what are the technicians comparing?
1 3947Promoters of housekeeping genes contain variable numbers of GC boxes, but neither TATA nor CCAAT boxes.Inwhat way these properties of housekeeping promoters are helpful?
2147Suppose you are heterozygous for a mutant beta-thalassemia allele. If the frequency of beta-thalassemia is 1/1600 persons, what is the probabilty that your prospective spouse is heterozygous for a mutant beta-thalassemia allele?
2141The village of Oblong has 400 normally-shaped residents. Transferrin is an iron carrier found in blood, and electrophoretic variation of this protein is determined by an autosomal codominant system. The citizens of Oblong were typed for their transferrin complements. The distribution of transferrin phenotypes was: 100 CC, 100 CD, and 200 DD. What is the frequency of the C allele?
1 3020Cystic fibrosis (CF) occurs with a frequency of about 1/2500 Caucasian newborns and is inherited as an autosomal recessive. A woman had an older sister die from complications of this disease. CF is not present among relatives of her husband. Both the woman and her husband have normal phenotypes. What is the chance this couple will have a CF child?
2305A blastomere was removed from an 8-cell human embryo, and its beta-globin gene was amplified by PCR. The beta-globin DNA was treated with an enzyme that cuts on either side of and within the normal allele (producing a small fragment), but not within the sickle cell allele (producing a large fragment). Electrophoresis of the treated DNA from the blastomere demonstrated the presence of both a large and small fragment derived from the beta-globin genes. How should you interpret this test?
2146
Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?
What does the formula DPD = SF – TP mean?
How can people support creationism when there is no factual basis for the claims made?
How does ethylene oxide sterilize?
Describe Telomerase Activity ?
Which cell organelles are well-developed in secretory cells?
what is the effect of different types of water on plants?
Name the Blood Vessels in Fish?
which cultures or subcultures or standards are generally using as a positive control for total aerobic microbial count in API?
Under which form is nitrogen fixed by the living beings.
What do you think are the more interesting areas of bioinformatics?
Describe sample of Bacteria Blu-o-gal ?
Which harms can thermal inversion cause to humans?
Name two elements, which are non-metallic in nature in 5th a group?
what is the difference between somatic hybridization and protoplast fusion?
