Category: Uncategorized

Dear LS students, here are s the answers to the question of the first term test. (attached) 2013-12-09 first trimester test-Answer key

Here’s the grades thus far  and some remarks: Question 1: Layal : 4.25 out of 5. “Indicate” doesn’t require justification, neither does “Draw out” (questions 1.1 and 1.6) Nitrogenous base is not the same as nucleotide. (question 1.3) Pay attention to 1.5, you have to rule out the heterozygous genotype. Tala: 4.75 out of 5 …

Read More “First term test results”

Watch this, you won’t regret: sickle cell anemia prenatal diagnosis.

Pedigree symbols Males are represented by squares. Females are represented by circles. Filled symbols show individuals who exhibit the trait in question. A horizontal line between two symbols represents a mating. A vertical line descends from parents to a horizontal line shared by all their offspring. A diagonal line through a symbol indicates that person …

Read More “Introduction to Pedigree Symbols and analysis”

So you have this gene whose nucleotide sequence is known to you but its chromosomal location (locus) is unknown, how do you go about finding this locus? The short answer is FISH i.e fluorescence in situ hybridization. Here’s a quick list of the steps of FISH technique: 1- prepare a fluorescent probe (short nucleotide sequence …

Read More “FISH conceptual drawing”

Dear LS students, please find attached the answer key to the quiz dated 31/10/2013 click on the link below to download it. 2013-10-31-answer_key