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In order to have a recessive trait an organism must have what copies of he recessive allele?
In order to express a recessive trait, an organism must have two copies of the recessive allele, one inherited from each parent. This is because the presence of a dominant allele will mask the effect of the recessive allele, preventing the recessive trait from being expressed. Thus, only when both alleles are recessive will the trait be visible in the organism's phenotype.
What else can I help you with?
Does a recessive allele need another recessive allele to be expressed?
Yes, a recessive allele needs to be paired with another recessive allele in order to be expressed. This is because recessive alleles are only expressed when an individual has two copies of the recessive allele, one from each parent. If an individual has one dominant allele and one recessive allele for a particular trait, the dominant allele will be expressed.
What is tessesive trait?
In genetics, a recessive trait is a characteristic that is only expressed when an individual has two copies of the recessive allele. This means that an individual must inherit two copies of the specific allele (one from each parent) in order for the recessive trait to be visibly manifested in the phenotype.
What only contributes to the phenotype when 2 copies are present?
Recessive alleles only contribute to the phenotype when two copies are present. This means that both copies of the gene must carry the recessive allele in order for it to be expressed phenotypically. If only one copy is present, the dominant allele will be expressed instead.
What is a trait that needs two factors in order to be expressed?
Actually, it is the recessive.................................................................UR WELCOME! :)
What does it mean that CF is a recessive gene?
The phenotype associated with a recessive gene is only expressed when two copies of the gene are present. For example, if a person has both a recessive allele and a dominant allele for CF, the person does not have CF. The person only has CF if he/she has two copies of the recessive allele.
Does a recessive allele need another recessive allele to be expressed?
Yes, a recessive allele needs to be paired with another recessive allele in order to be expressed. This is because recessive alleles are only expressed when an individual has two copies of the recessive allele, one from each parent. If an individual has one dominant allele and one recessive allele for a particular trait, the dominant allele will be expressed.
What is tessesive trait?
In genetics, a recessive trait is a characteristic that is only expressed when an individual has two copies of the recessive allele. This means that an individual must inherit two copies of the specific allele (one from each parent) in order for the recessive trait to be visibly manifested in the phenotype.
What is a gene whose effect can be hidden?
A recessive gene is a gene whose effect can be hidden in the presence of a dominant allele. This means that an individual needs to inherit two copies of the recessive allele in order for its effects to be observed.
What only contributes to the phenotype when 2 copies are present?
Recessive alleles only contribute to the phenotype when two copies are present. This means that both copies of the gene must carry the recessive allele in order for it to be expressed phenotypically. If only one copy is present, the dominant allele will be expressed instead.
What is a trait that needs two factors in order to be expressed?
Actually, it is the recessive.................................................................UR WELCOME! :)
What does it mean that CF is a recessive gene?
The phenotype associated with a recessive gene is only expressed when two copies of the gene are present. For example, if a person has both a recessive allele and a dominant allele for CF, the person does not have CF. The person only has CF if he/she has two copies of the recessive allele.
In pea plants green pod color is controlled by a dominant allele Yellow is controlled by a recessive allele Explain why a plant with yellow pods can never be a hybrid?
A plant with yellow pods can never be a hybrid because yellow pod color is controlled by a recessive allele, meaning the plant must inherit two copies of this allele to display the yellow color trait. Therefore, a plant with yellow pods necessarily has two copies of the recessive allele and cannot have a dominant allele for green pods.
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 kind of allele must an organism inherit in order for a recessive trait to show up?
Neither of the parents will be affected. There may not be any one with he disease in either of the parents families (or there might be). Since each parent is a carrier and has a 50/50 chance of passing one copy of the gene to each child 1/4 of the children will not get the gene, 1/2 will be carriers (1 copy) and 1/4 wil be affected (2 copies).
Why are recessive alleles not always expressed as the phenotype?
recessive alleles get masked to show the difference in a dominant gene and a recessive gene. the dominate genes masks the recessive genes to show that the dominate gene is more dominate or more likely to be the outcome than the reccessive gene but the masked gene is not always recessive.
Why are dumpy wings recessive or dominant trait?
Dumpy wings in fruit flies are a recessive trait. This means that an individual must inherit two copies of the dumpy wing allele (one from each parent) in order to exhibit the dumpy wing phenotype. Dominant traits, on the other hand, only require one copy of the allele to be expressed. In the case of dumpy wings, the presence of the wild-type allele (normal wings) masks the expression of the dumpy wing allele, making it recessive.
What is the difference between the dominant and recessive allele for a trait?
An individual must have 2 recessive alleles in order for a trait to show up. One must only have 1 dominant allele in order for a trait to occur.
