The gene D controls wing shape in flies and has two alleles: D is wild-type and dominant, and d is recessive and causes flies to
have downward pointed wings. The gene E controls eye development and also has two alleles: E is wild-type and dominant, and e is recessive and causes the flies to have small eyes. The two genes are located on the same chromosome. A pure-breeding fly with normal wings and small eyes was crossed with a pure-breeding fly with downward wings and normal eyes. All of the F1 progeny had a wild-type phenotype. The recombination frequency between the two genes is 14%. If an F1 individual was test crossed, what percentage of the progeny would you expect to have the WT phenotype?43%7%28%14%86%
DDee X ddEE = DdEe ( All have normal wings and normal eyes )
When a F1 individual is test crossed:
DdEe X ddee =
De/de = Parental
dE/de = Parental
DE/de = Recombinant
de/de = Recombinant
Recombination frequency between the two genes is 14% hence DE/de and de/de will each have 7% frequency. Since DE/de ( DdEe ) will give wild type phenotype, it means that 7% progeny will have wild type phenotype.
<span>Increased BP.The hyper tonic saline will increase osmolarity blood and other extra cellular fluids to remain in tissue/plasma volume and drawing fluid from interstitial space intoplasma volume.Increased BP,decreased edema having more fluid being moved into vascular system</span>
Gram-positive and Gram-negative are different in their resistance to antibiotics. It is because of their different structure of cell wall. Gram-positive bacteria have a thick peptidoglycan cell wall and dyes purple in the Gram test (for categorization of bacteria). Gram-negative bacteria have thin peptidoglycan layer and do not turn purple. Gram-positive bacteria are easier to kill because their thick peptidoglycan layer absorbs antibiotics.
