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If you know that the allele for attached earlobes is recessive and a friend of yours has attached earlobes what do you know about your friends the mothers and the fathers genotype?
If your friend has attached earlobes (recessive trait), then your friend must have two copies of the recessive allele for attached earlobes (aa). This means that both of your friend's parents must be carriers of the recessive allele (Aa) in order to pass it on. Your friend's mother and father would both have one dominant allele (A) for free-hanging earlobes and one recessive allele (a) for attached earlobes.
What happens when a person receives on alle for attached earlobes and one for unattached earlobes?
there one alle for free ear-lobes and another allele for attached if your gene for ear-lobes is made up of two alleles for free ear-lobes your ear-lobes are NOT attached and if you have two attache-ear-lobes alleles your ear-lobes are attached
Is Attached earlobes is a type of multiple allele system?
yes!
Arlobes can be either attached or detached. The allele for attached earlobes is recessive (e) and the allele for detached earlobes is dominant (E). What must be true if a boy is born with attached ear?
If a boy is born with attached earlobes, he must have inherited two recessive alleles (ee), one from each parent. This means that both parents must either be carriers of the recessive allele (Ee) or express the attached earlobe phenotype themselves (ee). Therefore, at least one of the parents must have the recessive allele for attached earlobes.
Which characteristics show complete dominance on a human?
Complete dominance in humans occurs when one allele completely masks the expression of another allele for a particular trait. An example of this is the ABO blood group system, where the A and B alleles are dominant over the O allele; thus, individuals with AO or BO genotypes will express the A or B blood type, respectively. Other traits displaying complete dominance include the presence of attached or free earlobes, where the allele for free earlobes is dominant over the allele for attached earlobes. In both cases, the dominant allele's phenotype is fully expressed in the presence of a recessive allele.
What is the probability that a father produces a gamete with the allele for attached earlobes if he has one allele for detached earlobes and one allele for attached earlobes?
50%
Earlobes can be either attached or detached. The allele for attached earlobes is recessive and the allele for detached earlobes is dominant. What must be true is a boy is born with attached earlobes?
He has a homozygous genotype
If you know that the allele for attached earlobes is recessive and a friend of yours has attached earlobes what do you know about your friends the mothers and the fathers genotype?
If your friend has attached earlobes (recessive trait), then your friend must have two copies of the recessive allele for attached earlobes (aa). This means that both of your friend's parents must be carriers of the recessive allele (Aa) in order to pass it on. Your friend's mother and father would both have one dominant allele (A) for free-hanging earlobes and one recessive allele (a) for attached earlobes.
What happens when a person receives on alle for attached earlobes and one for unattached earlobes?
there one alle for free ear-lobes and another allele for attached if your gene for ear-lobes is made up of two alleles for free ear-lobes your ear-lobes are NOT attached and if you have two attache-ear-lobes alleles your ear-lobes are attached
Are ear lobs that are attached dominant or recessive?
It was said earlier that, "Unattached earlobes are the dominant trait, twice as many people have unattached earlobes compared to attached." There is not actually any real proof that unattached earlobes are dominant. While more people may have unattached earlobes, attached earlobes are dominant. This was proved in a pedigree which covered three generations of extended families.
Is Attached earlobes is a type of multiple allele system?
yes!
Arlobes can be either attached or detached. The allele for attached earlobes is recessive (e) and the allele for detached earlobes is dominant (E). What must be true if a boy is born with attached ear?
If a boy is born with attached earlobes, he must have inherited two recessive alleles (ee), one from each parent. This means that both parents must either be carriers of the recessive allele (Ee) or express the attached earlobe phenotype themselves (ee). Therefore, at least one of the parents must have the recessive allele for attached earlobes.
What is true if a boy is born with detached earlobes?
He has at least ONE E allele
Dominate allele will mask any other allele that is considered what?
recessive
Ear lobes can be either attached or detached the allele for attached earlobes is recessive and the allele for detached earlobes is dominant what must be true if a boy is born with attached your lobes?
He has at least one E allele is correct. I take the quiz
Which characteristics show complete dominance on a human?
Complete dominance in humans occurs when one allele completely masks the expression of another allele for a particular trait. An example of this is the ABO blood group system, where the A and B alleles are dominant over the O allele; thus, individuals with AO or BO genotypes will express the A or B blood type, respectively. Other traits displaying complete dominance include the presence of attached or free earlobes, where the allele for free earlobes is dominant over the allele for attached earlobes. In both cases, the dominant allele's phenotype is fully expressed in the presence of a recessive allele.
Both you and your sister or bother have attached earlobes yet your parents have unattached earlobes unattached earlobes are dominant over attached earlobes what are the genotypes of your parents?
If both you and your sibling have attached earlobes (aa genotype) and your parents have unattached earlobes, then your parents must both be carriers of the recessive allele for attached earlobes (Aa genotype).
