If one fruit fly is heterozygous for long wings and the other is homozygous for short wings, the expected percentage of their offspring having long wings would be 50%. This is because when the long-winged parent passes on the dominant long-wing allele and the short-winged parent passes on the recessive short-wing allele, the offspring would have one of each allele, resulting in the offspring having long wings.
One copy of each allele, resulting in the offspring having one dominant allele and one recessive allele. This combination is known as heterozygous.
You would expect 50% of the offspring to have black bodies. This is because the offspring will inherit one allele for black body color from the black parent, and one allele for gray body color from the heterozygous gray parent. The black allele is dominant over the gray allele.
In the case of selfing an Rr individual - which is heterozygous - you would expect 50% of the offspring to be heterozygous (Rr), as each parent contributes one allele to the offspring. Each allele has a 50% chance of being passed on.
Allele frequency.
If one fruit fly is heterozygous for long wings and the other is homozygous for short wings, the expected percentage of their offspring having long wings would be 50%. This is because when the long-winged parent passes on the dominant long-wing allele and the short-winged parent passes on the recessive short-wing allele, the offspring would have one of each allele, resulting in the offspring having long wings.
One copy of each allele, resulting in the offspring having one dominant allele and one recessive allele. This combination is known as heterozygous.
You would expect 50% of the offspring to have black bodies. This is because the offspring will inherit one allele for black body color from the black parent, and one allele for gray body color from the heterozygous gray parent. The black allele is dominant over the gray allele.
The homozygous dominant individual can only pass on the dominant allele and the homozygous recessive individual can only pass on the recessive allele, therefore all offspring will be heterozygous and have the dominant phenotype.
In the case of selfing an Rr individual - which is heterozygous - you would expect 50% of the offspring to be heterozygous (Rr), as each parent contributes one allele to the offspring. Each allele has a 50% chance of being passed on.
100% of the offspring will display the dominant trait because the homozygous dominant parent can only pass on the dominant allele. The offspring will inherit one dominant allele from the dominant parent and one recessive allele from the recessive parent, resulting in a heterozygous genotype expressing the dominant trait.
A dominant allele is expressed when an individual carries one or two copies of that allele. A recessive allele is only expressed when an individual carries two copies of that allele. Dominant alleles are typically passed on to offspring if at least one parent carries the dominant allele.
Allele
No, a recessive trait will only show in the offspring if there is no dominant allele masking it. The trait that will always show in the offspring is the dominant allele, provided one parent was homozygous for it.
No, a recessive trait will only show in the offspring if there is no dominant allele masking it. The trait that will always show in the offspring is the dominant allele, provided one parent was homozygous for it.
Allele frequency.
The probability of inheriting a specific allele in a hybrid plant would be 1/2 or 50%, as each parent contributes one allele and there are two possible alleles for a specific gene. Each offspring has an equal chance of inheriting either allele from the parent.