What is the genotype of a fly?
For instance, a wild-type fly (with red eyes and a yellow body) has one of four possible genotypes: EEBB, EEBb, EeBB, and EeBb. There is no way to tell these genotypes apart visually, but there is a well-established experimental technique to determine the fly’s genetic makeup.
What is the genotype of F1 flies?
All offspring (F1) are heterozygous Rr and have a pink flower, an intermediate between red and white.
What is an example of a fruit fly’s genotype?
The primary sex chromosome genotype of the male fruit fly is XY, and that of the female is XX. The XO and XYYY genotypes also yield male fruit flies, whereas the XXYY and XXY genotypes yield female fruit flies. In fruit flies, the presence of two X chromosomes allows the female phenotype to persist, 1.
How do you determine genotypes?
A Punnett square is one of the simplest ways to determine genotype. The square is actually a mini-chart used to determine the potential genotype for an offspring with respect to particular trait.
What is the genotype of the male fruit fly?
The sex of the fruit fly Drosophila melanogaster is determined as follows: XX chromosomes give a female and XY give a male. The gene for bar eyes is recessive and located on the X chromosome.
What is the genotype of the F1 intermediate wing length flies?
When several intermediate-winged flies are allowed to interbreed, the following results are obtained: 230 long-winged flies, 510 intermediate winged flies, 260 short winged flies. b.
|Phenotype and Symbol||Females||Males|
|Vestigial Wings (ww)||151||163|
How do you write a mutant genotype?
For spontaneously or targeted mutant mice, this notation makes perfect sense: “+” indicates the wildtype allele, and “-” the mutant allele. Thus, we designate our mouse genotypes “-/-” for homozygous mutants, “+/-” for heterozygotes, and “+/+” for wildtypes.
Is it wildtype or wild type?
So, buy those microfuge tubes now. For our particular phrase, I’m just counting the days until “wild type” merges into “wildtype” and my authors no longer have to worry about whether to hyphenate or not. Until that time, a simple rule to guide you is that the noun form takes no hyphen.
What does the wild type genotype mean for fruit flies?
In Drosophila, the most common form is called the ‘wild type’. A mutant can be either dominant or recessive to the wild type. When the mutants were discovered, they had to be named. … If the mutant is recessive to the wild type, its name is given in lower-case, but if it is dominant, it is given in upper case.
How do you read a Drosophila genotype?
A “+” superscript indicates a wild-type allele of the gene. A “+” in place of a gene symbol indicates that the chromosome or the complete genotype, depending on the context, is wild type.
How do you use FlyNap?
How to use FlyNap® Use FlyNap® under a fume hood or in a well-ventilated area. Fruit flies can be anesthetized in an empty vial, in a Drosophila anesthetizer, or in their original culture vessel; however, anesthetizing flies in culture vials containing media risks drowning unconscious flies.