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What else can I help you with?
What happens to the recessive allele in a heterozygous offspring?
In a heterozygous offspring, the recessive allele is present, but it is overridden by the dominant allele in terms of physical expression. The recessive allele still remains in the genetic makeup of the offspring and can be passed on to future generations.
Why do we call some alleles dominant?
because it dominates the phenotype
Why is it impossible for offspring to show the recessive trait if one parent is homoygous for the dominant trait?
Because the parent with the homozygous alleles for the dominant trait can only pass on that dominant allele to its offspring and the dominant allele, if present, is always expressed.
What was the ratio of dominant of recessive phenotypes in the F2 generation of Mendel's experiments?
The traits were recessive.
What is the phenotype of a flower in a pea plant that is homozygous recessive?
You would expect 1 homozygous dominant, 2 heterozygous dominant and 1 homozygous recessive offspring. This is because each parent has one dominant and one recessive allele. Therefore there is a 75% chance of a dominant phenotype and a 25% chance of a recessive phenotype.
What is the term for an allele that is not expressed in the phenotype of a heterozygous individual?
incomplete dominance source: PH Bio textbook
What happens to the recessive allele in a heterozygous offspring?
In a heterozygous offspring, the recessive allele is present, but it is overridden by the dominant allele in terms of physical expression. The recessive allele still remains in the genetic makeup of the offspring and can be passed on to future generations.
Why do we call some alleles dominant?
because it dominates the phenotype
How would the baby change if one of the parents was homozygous recessive for all the traits while the other parent was heterozygous?
If one parent is homozygous recessive for all traits (genotype aa) and the other is heterozygous (genotype Aa), the offspring will inherit one allele from each parent. This means that each trait will have a 50% chance of being expressed as the dominant trait (A) and a 50% chance of being expressed as the recessive trait (a). Therefore, the baby could be either heterozygous (Aa) or homozygous recessive (aa) for each trait, resulting in a mix of dominant and recessive phenotypes. Overall, the baby will display characteristics based on the combination of alleles inherited from both parents.
What is the probability that offspring of a cross between a homozygous recessive parent and a hetezyguous parent will be homozygous recessive?
In a cross between a homozygous recessive parent (AA) and a heterozygous parent (Aa), the possible genotypes of the offspring are 50% homozygous recessive (AA) and 50% heterozygous (Aa). Therefore, the probability that an offspring will be homozygous recessive is 50%.
What is a gene which is stronger and therefore expressed or shown in the phenotype?
I think the answer your looking for is "the dominant". However depending on what the gene codas for occasionally if both a dominant and recessive are present a different expression will be observed compared to just dominant or just recessive.
What is a gene which is stronger and therefore expressed or shown in the phenotype called?
I think the answer your looking for is "the dominant". However depending on what the gene codas for occasionally if both a dominant and recessive are present a different expression will be observed compared to just dominant or just recessive.
What is the likelihood of a recessive trait being expressed if your offspring is crossed with a homozygous dominant eye shape prove your answer in a cross?
If you cross a homozygous dominant individual (AA) with a heterozygous individual (Aa), the offspring will have a genotype ratio of 100% dominant phenotype (AA or Aa) and 0% recessive phenotype (aa). Therefore, if your offspring has a homozygous dominant trait (AA), the likelihood of expressing a recessive trait (aa) is 0%. The Punnett square for this cross would show all dominant traits, confirming that recessive traits cannot be expressed in this scenario.
If both heterozygous parents are carriers of a recessive allele for phenylketonuria the probability that a given child of these parents will have PKU is?
The probability that a given child will have PKU is 25%. This is because both parents are carriers of the recessive allele (heterozygous), so there is a 25% chance that they will each pass on the recessive allele, resulting in the child having PKU.
How would the smiley faces change if one the parents were reccesive for all the traits while the other was heterozygous?
If one parent is recessive for all traits (homozygous recessive) and the other is heterozygous for those traits, the offspring would display a mix of phenotypes. Each trait would have a 50% chance of being inherited as the dominant phenotype (from the heterozygous parent) and a 50% chance of being recessive (from the homozygous recessive parent). Therefore, the resulting smiley faces would likely show a combination of dominant and recessive traits, reflecting this genetic variation.
What is the percentage of offspring that will exhibit the dominant trait from A crossing of A homozygous dominant and homozygous recessive individual?
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 mendels experiment why did traits show up in the f2 generation that were not present in the f1 generation?
All of the F1 generation are heterozygous, therefore 100% exhibit the dominant phenotype. The F2 generation has a ratio of 1 homozygous dominant: 2 heterozygous: 1 homozygous recessive. This results in a phenotypic ratio of 3 dominant: 1 recessive.
