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What are the ratios of a heterozygous dihybrid cross and what is the probability of having the recessive trait show?
Wiki User
∙ 11y ago
9:3:3:1
The probability of having both recessive traits is 1:16.
Wiki User
∙ 11y ago
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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.
What is an example of a heterozygous chromosome?
An example of a heterozygous chromosome is having one chromosome with a dominant allele and the other with a recessive allele for a particular gene. This can lead to different traits expressed depending on the dominant or recessive nature of the alleles.
Is heterozygeous dominant or reccesive?
Heterozygous means that it carries both dominant and recessive traits (as opposed to homozygous which carries only one) - the dominant trait is the one which is expressed (phenotype). A heterozygous trait can be expressed as Rr - "R" the dominant trait and "r" the recessive trait.
1 What is the difference between homozygous and heterozygous?
Homozygous refers to having two identical alleles for a trait, while heterozygous refers to having two different alleles for a trait. In other words, homozygous individuals have either two dominant or two recessive alleles, while heterozygous individuals have one dominant and one recessive allele.
What prepesents a heterozygous genotype?
A heterozygous genotype represents having two different alleles for a particular gene, with one being dominant and the other recessive. This results in the individual expressing the dominant trait while also carrying the recessive allele.
What does dihybrid heterozygous mean?
Dihybrid heterozygous refers to an organism that has two different alleles for two different genes, with one allele being dominant and one allele being recessive for each gene. This means that the organism carries two different versions of each gene, one inherited from each parent.
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.
What is the probability of having a child with attached earlobes when an individual with attached earlobes mates with an individual heterozygous for free earlobes?
Attached earlobes are a recessive trait. When one parent has attached earlobes and the other is heterozygous for free earlobes, the chances of any particular offspring having attached earlobes is fifty percent.
What term describes the parents in a mono-hybrid cross?
The term is: heterozygous parents A monohybrid cross involves a single parent, whereas a dihybrid cross. The law of segregation requires having two or more generations to describe.
What is it called having a dominate and recessive allele?
Having a dominant and recessive allele is known as Mendelian inheritance, named after Gregor Mendel, the scientist who first described it. In this type of inheritance, the dominant allele masks the expression of the recessive allele in heterozygous individuals.
Condition of being heterozygous for a recessive trait?
Being heterozygous for a recessive trait means having one dominant allele and one recessive allele for that particular trait. In this case, the dominant allele will determine the phenotype while the recessive allele is masked. This individual will not show the trait associated with the recessive allele but can pass it on to their offspring.
What is an example of a heterozygous chromosome?
An example of a heterozygous chromosome is having one chromosome with a dominant allele and the other with a recessive allele for a particular gene. This can lead to different traits expressed depending on the dominant or recessive nature of the alleles.
Is heterozygeous dominant or reccesive?
Heterozygous means that it carries both dominant and recessive traits (as opposed to homozygous which carries only one) - the dominant trait is the one which is expressed (phenotype). A heterozygous trait can be expressed as Rr - "R" the dominant trait and "r" the recessive trait.
1 What is the difference between homozygous and heterozygous?
Homozygous refers to having two identical alleles for a trait, while heterozygous refers to having two different alleles for a trait. In other words, homozygous individuals have either two dominant or two recessive alleles, while heterozygous individuals have one dominant and one recessive allele.
What is the difference between homzyguos and heterozyous?
Homozygous refers to having two identical alleles for a particular gene (e.g., two alleles for blue eyes). Heterozygous refers to having two different alleles for the same gene (e.g., one allele for blue eyes and one allele for brown eyes).
Apply the term homozygous heterozygous dominant or recessive to describe plants with the genotypes PP and Pp?
The plant with genotype PP is homozygous dominant, meaning it has two dominant alleles. The plant with genotype Pp is heterozygous, having one dominant and one recessive allele.
What is it when you have a gene pair that consist of two dominate alleles and two recessive alleles?
Having a gene pair with two dominant alleles means that both alleles are expressing themselves over the recessive alleles, leading to a dominant trait. Conversely, having two recessive alleles means that the trait will be recessive. This situation is known as homozygous dominant and homozygous recessive, respectively.
