Search & Filtering
In drosophila, there is a dominance hierarchy for wing shape.(Curly>Straight>Wavy>Dwarfed).
Show all work including a legend
a. State the phenotypic ratio from a cross with heterozygous wavy winged male with a dwarf winged female.
b. State the phenotypic ratio from a cross with a heterozygous curly winged male who had a dwarfed winged mother, and a straight winged female whose mother was homozygous with wavy wings.
In drosophila, there is a dominance hierarchy for wing shape.(Curly>Straight>Wavy>Dwarfed).
Show all work including a legend
a. State the phenotypic ratio from a cross with heterozygous wavy winged male with a dwarf winged female.
Baldness(HB) is dominant in males but recessive in females. The normal gene (Hn)
is dominant in females, but is recessive in males. Explain how a bald offspring can be produced from the mating of normal female with a normal male. Could these parents ever produce a bald girl? Explain
When a homozygous tall plant with red flowers is crossed with a short plant bearing white flowers, what will the phenotypes of the offspring be for the next two generations? Indicate the crosses fully showing the genotypes of the P1and P2 generations, the gametes, and the F1 and F2 offspring. Note: In this species, tallness (T) is dominant to shortness (t). A red (R1) flower is crossed with a white flower (R2) flower produces pink (R1R2) flowers.
In a certain species of plants, scented and odorless flowers occur, together with hairy and smooth stems. A scented, smooth-stemmed plant was crossed with a fully homozygous odorless plant with hairy stems. Indicate the possible genotypes and phenotypes of the parents and offspring that would produce four kinds of phenotypes among the offspring, in equal numbers (1:1:1:1). Assume scented and smooth are dominant
State the important of biological and scientific uses of radioisotopes
if luciferase gene were inserted in DNA of cells from another organism, what happens in the cell?
does genetic recombination occurs when new gene combinations are produced by crossing over and segregation
Direction: Using at least three sentences, explain the four stages involved in genetic engineering/gene cloning.
Stage 1: Isolation of the target gene
Stage 2: Insertion of the target gene
Stage 3: Introduction of the vector into a host
Stage 4: Amplification of the target gene by the host cell and screening
I NEED ASAP PLSSSS<3
Direction: Answer briefly.
If you were a genetic engineer, what organism would you like to modify and why?
