The problem is regarding mutations
A student in a molecular genetics lab is using the SSCP technique to analyze DNA from breast cancer tumours, and has identified five different shifts in fragments of the BARD1 gene. (BARD1 [genbank accession number NM_000465] is a tumour suppressor gene, mutations in which are associated with breast cancer.) Partial sequences fr ...continues
It's regarding genotypes and linkages.
A hairy-winged (h) Drosophila female is mated with a yellow-bodied (y), white-eyed (w) male. The F1 are all normal. The F1 progeny are then crossed and the F2 that emerge are Females: Wild-type 757 Hairy 243 Males: Wild-type 390 Hairy 130 Yellow 4 White ...continues
In Aspergillus, the genes y (yellow), os (osmotic), c (colonial), leu (leucine-requiring), and a (aconidial) are located on the long arm of chromosome 3. A diploid was made between a haploid wild type and a haploid of genotype y os c leu a. From the green diploid, yellow diploid sectors appeared. When these were sampled and test ...continues
a student in a molecular genetics lab is using the SSCP technique to analyze DNA from breast cancer tumours and has identified five different shifts in fragments of the BARD1 gene. (BARD1 [genbank accession number NM_000465] is a tumour suppressor gene, mutations in which are associated with breast cancer.) Partial sequences fr ...continues
It's about the Drosophilla crosses
In a lab strain of Drosophila, cinnabar (cn) and brown (bw) are recessive eye colour mutations known to be 41 m.u. apart on chromosome 2. When similar mutant alleles were induced in a strain from nature, the same linkage of cn and bw was observed. However, when a wild-type strain from nature was crossed with a cn bw/cn bw lab st ...continues
Why are some units of blood irradiated. They tend to be given to immunocomprised patients. What does irradiation actively do to the blood, that makes it safer for these patients?
Is it possible to hold your breath until you die?
Is it possible to hold your breath until you turn blue and die? Why or why not? Be very detailed using principles of respiration, blood oxygen levels and blood carbio dioxide levels.
Why is it bad to administer pure oxygen to someone with emphysema?
Mr. Smith has had chronic advanced emphysema for 15 years. Mr Smith is hospitalized for his condition and without thinking , his nurse immediately administers pure oxygen. Mr. Smith stops breathing. Why? Be very specific.
Stomach problems and vitamin deficiencies
A patient was experiencing stomach problems and was starting to show signs of vitamin deficiencies. Which vitamin would be most affected with a stomach pathology and why? How would supplements be administered and why? Amy was also placed on an antibiotic for a sore throat and it also destroyed bacteria in the colon. How would th ...continues
A member of a gang was rushed to the emergency room with a stab wound to the left thorax. It was found that his left lung had collapsed. Why had his lung collapsed? Why only his left lung? What is this condition called? How could this condition be corrected by the emergency room personnel?
