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How can a child inherit a phenotype which neither of his parents have?
Wiki User
∙ 17y ago
A phenotype is basically just the physical appearance of an individual. Inheritance is merely the transference of characteristics from one generation to another. When the pairs of chromosomes are pulled apart during meiosis, chance alone determines which member of each pair of chromosomes end up in the same cell. The possible combinations for humans (23 pairs of chromosomes) can be calculated to 2 to the 23rd power, or over 8 million different possible combinations in each sperm or ovum. The combinations possible in a zygote (fertilized egg) are greater that 70 000 000 000 000. As a result, its hard to find an exact duplicate for any one human being. When genes are transmitted from one generation to another, particular traits found in both parents can passed onto the child, expressed by dominant genes. A child can look physically different from either parent due to recessive gene traits carried by each parent. Recessive genes are present in the parents but remain "unseen".
Wiki User
∙ 17y ago
A child can inherit a phenotype that neither of their parents have through a new mutation in the child's DNA that results in a unique trait not present in the parents. This can be a random occurrence during gamete formation or early development that leads to a novel phenotype in the child. Additionally, there could be hidden recessive genes from earlier generations that are expressed in the child.
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What happen when both parents Carrie a ressavie of gene?
If both parents carry a recessive gene, there is a 25% chance that their child will inherit two copies of the recessive gene, leading to the expressed trait or condition. There is a 50% chance the child will inherit one copy of the gene and be a carrier like the parents, and a 25% chance the child will not inherit the gene at all. This is based on the principles of Mendelian genetics.
What is the probability of a man who has BB genotype and his wife who has BO genotype to have a child who is AB?
No probability. Neither parent has an "A" for the child to inherit to make an "AB".
Right of an illigitimate child to inherit?
The right of an illegitimate child to inherit varies by country or state. In some places, illegitimate children have inheritance rights, while in others they may not automatically inherit from their biological parents. It's important to check the specific laws in the relevant jurisdiction to understand the rights of an illegitimate child to inherit.
A child is born with attached earlobes but both parents have hanging earlobes. What are the genotypes and phenottypes fot the parents?
The parents would each have the genotype Ee (heterozygous for earlobe attachment) and the phenotype for hanging earlobes. The child inherited the attached earlobe allele from both parents, resulting in the AA genotype and the phenotype for attached earlobes.
How would a child inherit PKU?
A child inherits PKU if both parents are carriers of the gene mutation that causes the condition. When both parents are carriers, there is a 25% chance with each pregnancy that the child will inherit two copies of the mutated gene and have PKU.
Can a child be afflicted with a dominant trait if both her parents have a normal phenotype Why or why not?
No, a child cannot be afflicted with a dominant trait if both parents have a normal phenotype. This is because dominant traits require at least one copy of the dominant allele to be expressed, and if both parents have a normal phenotype, they would not carry the dominant allele to pass onto their child.
Can two parents with blood type A positive have a child with O positive blood type?
Yes, if both parents have the genotype AO, then the child can have the O from both parents, phenotype O
Can a child have blue eyes when neither parents family have?
No.
What is the probability of a man who has BB genotype and his wife who has BO genotype to have a child who is AB?
No probability. Neither parent has an "A" for the child to inherit to make an "AB".
Right of an illigitimate child to inherit?
The right of an illegitimate child to inherit varies by country or state. In some places, illegitimate children have inheritance rights, while in others they may not automatically inherit from their biological parents. It's important to check the specific laws in the relevant jurisdiction to understand the rights of an illegitimate child to inherit.
Can an adult child inherit a parents debt if there are no assets?
The estate will be responsible for the debts. A child is not responsible unless they co-signed for it.
What are two visible characteristics that you inherit from your parents?
Eye color and hair texture are two visible characteristics that can be inherited from parents. These traits are determined by genetic factors passed down from parents to their children.
How will your child look?
it will probably inherit some genes from both parents, so it depends on which parent, but they usually resemble one of the parents, or both
The phenotype of a child is determined by the interaction between a pair of and their interaction with their?
The phenotype of a child is determined by the interaction between a pair of alleles inherited from the parents and their interaction with the environment. Alleles are variations of a gene that can influence traits, while the environment can also play a role in how these traits are expressed.
If both parents are right handed can the child be left handed?
NO, the child would inherit the characteristics of both parents which will have the characteristics of the right handed, but they could if any of the parents families where left handed it can skip a generation and give it to the child. But mainly the child will inherit the characteristics of the right hand.
What blood type would a baby have if both parents have blood type O positive?
The baby would have blood type O positive. A child can only inherit blood type O from parents who each have at least one O allele. And since O is recessive, both parents must have two O alleles to have blood type O.
Can two O neg people have an A plus baby?
NO. The alleles that lead to "O-type" blood are recessive to the alleles that lead to "A-type" blood and the child would have to inherit this "A" from one of his/her parents. Given that both parents are "O", there is nobody to inherit the "A" from. (This issue also presents with the exclusive RH- in the parents and RH+ in the child, because RH+ is dominant over the recessive RH-.)
