What is the genotype of a homozygous long winged fruit fly that is heterozygous for gray body color?
This means the parent fly with gray, short-wings is heterozygous for the body color and the parent fly with black, long-wings is heterozygous for wing length. Therefore, the genotype of the parent with gray, short-wing is Ggll and that of black, the long-winged fly is ggLl. Thus, the correct answer is option B.
What is the genotype of a heterozygous fly?
In these flies, the brown-eye allele (b) is recessive to the normal red-eye allele (B). However, a fly that has a normal body color may have the homozygous genotype EE or the heterozygous genotype Ee.
What offspring would result from a heterozygous gray GG bodied fly and a homozygous black GG bodied fly?
The offsprings of a homozygous gray bodied fly (GG) and a homozygous black bodied fly (gg) will be heterozygous gray bodied flies (Gg). Hence, the phenotype of the parents is: One will have gary body and other will have black body.
Is the genotype BB heterozygous or homozygous?
An organism with two dominant alleles for a trait is said to have a homozygous dominant genotype. Using the eye color example, this genotype is written BB. An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype.
Is AA homozygous or heterozygous?
Two dominant alleles (AA) or two recessive alleles (aa) are homozygous. One dominant allele and one recessive allele (Aa) is heterozygous.
Are females heterozygous or homozygous?
Females (XX) have two copies of each gene on the X chromosome, so they can be heterozygous or homozygous for a given allele. However, males (XY) will express all the alleles present on the single X chromosome that they receive from their mother, and concepts such as ‘dominant’ or ‘recessive’ are irrelevant.
What is heterozygous trait?
​Heterozygous Heterozygous refers to having inherited different forms of a particular gene from each parent. A heterozygous genotype stands in contrast to a homozygous genotype, where an individual inherits identical forms of a particular gene from each parent.
How do you treat heterozygous?
There are treatments available for heterozygous and homozygous FH, and more are in development. For many people with heterozygous FH, treatment can be relatively straightforward: a heart healthy diet, regular exercise and one or two prescription medications.
What does it mean to have a heterozygous mutation?
Compound heterozygote: The presence of two different mutant alleles at a particular gene locus, one on each chromosome of a pair. A mutation affecting only one allele is called heterozygous. A homozygous mutation is the presence of the identical mutation on both alleles of a specific gene.
What are the clinical issues associated with being heterozygous?
in heterozygotes has been reported together with signs of a slightly increased cerebral irritability, a possible slight increase of risk for mental disease, and an increase of blood phenylalanine levels in stress situations.
What diseases are caused by dominant allele?
Examples of AD disorders are familial hypercholesterolemia, which is caused by mutations in the low-density lipoprotein receptor; osteogenesis imperfecta, caused by mutations in some members of the collagen gene family; and Huntington disease, caused by a triplet repeat expansion in the Huntington gene.
What is the probability that the offspring will be heterozygous?
The Punnett square below makes it clear that at each birth, there will be a 25% chance of you having a normal homozygous (AA) child, a 50% chance of a healthy heterozygous (Aa) carrier child like you and your mate, and a 25% chance of a homozygous recessive (aa) child who probably will eventually die from this …
What is the probability the child will be homozygous dominant?
a 100%
What is the probability that the offspring will be female?
50%