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If both parents are heterozygous for polydactyly what percentage of offspring will exhibit polydactyly?
There is a 25% chance that the offspring will exhibit polydactyly if both parents are heterozygous for the trait.
What was the probability that two heterozygous parents would have an offspring that produced round seeds?
If both parents are heterozygous for seed shape (Rr), their offspring would have a 75% chance of producing round seeds (3 out of 4 possible combinations), assuming round seeds (R) are dominant over wrinkled seeds (r).
How do two heterozygous organisms produce on offspring with a recessive phenotype?
There are two forms of Homozygous inheritance: Homozygous Dominant, and Homozygous Recessive. In order for two parents that are Homozygous to produce a Heterozygous offspring, one of them MUST be Homozygous Dominant, and the other MUST be Homozygous Recessive.
The offspring of two parents that are heterozygous for a given trait have a percent chance of being homozygous for that trait?
There is a 25% chance (1 in 4) that the offspring will be homozygous for the trait. This is because when both parents are heterozygous (Aa), they can pass on either the dominant allele (A) or the recessive allele (a) to their offspring, resulting in a 1 in 4 chance of the offspring receiving the recessive allele from both parents and becoming homozygous (aa) for that trait.
What is the phenotype of all four offspring's?
Generally, if the parents are heterozygous and one allele is dominant over the other there are only 2 phenotypes and 3 genotypes. Parents Aa can produce AA, Aa and aa offspring. If the heterozygous individuals have an intermediate phenotype, then three genotypes and 3 phenotypes are possible. If 2 traits are being studied using heterozygous parents AaBb then the possible Genotypes are AABB, AABb, AAbb, AaBB, AaBb, Aabb, aaBb, aaBB, aabb which is nine genotypes. But there are 4 phenotypes. AABB AABb AaBB AaBb are phenotypically the same. aaBb, aaBB are phenotypically the same. Aabb, AAbb are phenotypically the same. aabb
Who is affected achondroplasia?
The offspring of the parents are affected
If both parents are heterozygous for polydactyly what percentage of offspring will exhibit polydactyly?
There is a 25% chance that the offspring will exhibit polydactyly if both parents are heterozygous for the trait.
Is it possible for two parents with a yellow body color to have a blue offspring?
If they both are heterozygous and the recessive gene is blue it can happen
If a child has blond hair and both of her parents have brown hair what does that tell you about the allele for blond hair?
Both of the parents were heterozygous with the blonde hair allele, which is recessive. When there are two parents that are heterozygous, there is a 25% chance their offspring will get two of the recessive alleles. A punnett square can be useful when determining the different phenotypes and genotypes possible in offspring
If purple flower color is dominant over white flower color how can two purple flowered parents produce while flowered offspring?
It can happen when both parents are a heterozygous
What was the probability that two heterozygous parents would have an offspring that produced round seeds?
If both parents are heterozygous for seed shape (Rr), their offspring would have a 75% chance of producing round seeds (3 out of 4 possible combinations), assuming round seeds (R) are dominant over wrinkled seeds (r).
Which type of cross would produce 100 percent heterozygous offspring?
A cross between two homozygous parents will form a 100 percent chance of a heterozygous offspring. One homozygous parent must have the dominant allele, and the other must have the recessive allele. So, if the circumstances are correct, these characteristics will make for a 100 percent chance of a heterozygous offspring.
Do Ellie Simmonds parents have achondroplasia?
no Ellie Simmonds parents has not got achondroplasia
How do you make a pun nett square to show how many offspring will be heterozygous?
First, draw a box, then divide it in four. Let's say we're testing for the genotypes of the offspring of parents with TT and Tt genotypes. Above the first box, write one allele of a parent, or in this case, T. Above the box to the right of it, write another T for the parents' other allele. Do the same down the left side of the four boxes with the other parent's genes. Now, this is a bit like finding coordinates. In the first box, write the allele of the gene above it, and to its left. That is one possible genotype of the offspring. Repeat this for all squares. In our case with the parents being TT and Tt, the four offspring in the Punnett squares will have only two possible genotypes; TT or Tt, like their parents. This will show you how many chances the offspring have of being heterozygous, homozygous dominant, or recessive.
What was the probability that two heterozygous parents would have an offspring that produced rounds seeds?
3:4 or 75%
What is the difference between purebred organism and a hybrid?
A purebred organism is the offspring of two homozygous parents, having either two dominant alleles, AA or two recessive alleles, aa. A hybrid is the offspring of two heterozygous parents, Aa.
How do two heterozygous organisms produce on offspring with a recessive phenotype?
There are two forms of Homozygous inheritance: Homozygous Dominant, and Homozygous Recessive. In order for two parents that are Homozygous to produce a Heterozygous offspring, one of them MUST be Homozygous Dominant, and the other MUST be Homozygous Recessive.
