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What gene will exhibit its traits even in a prensesce of a recessive gene?
Wiki User
∙ 11y ago
The dominant allele
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoDominant
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Why is there so many combinations of traits in an offspring?
There are so many combinations of traits in offspring because organisms are so complex. Even if somebody has brown eyes, for example, they might have a recessive gene for blue eyes, which they could pass to one or all of their children.
What differences would be expected in experiments with squash plantswhich usually do not self pollinate?
Since squash plants do not self-pollinate, they cannot produce a true-breeding generation (known as the P generation in Mendel's experiment). Thus, there will be two consequences: 1. Obtaining a pure-breeding squash plant will be hard or nearly impossible. 2. Recessive traits will show up earlier in the generations. For example, in Mendel's pea-plant experiment, recessive traits reappeared in the F2 (second filial) generation. In this case, recessive traits could appear in the F1 (first filial) or P (parental) generation... or even earlier.
What is the kind of trait that seemed to vanish in the offspring produces in Mendel's first experiment?
Mendel's experiments showed the characteristics of genes that express complete dominance--that is, traits where one allele is completely dominant over another, and the recessive allele does not appear in the phenotype at all. Some of the specific traits that Mendel was testing include pea color (yellow or green, with green being completely dominant) pea surface texture (wrinkled or smooth, with smooth being dominant) and flower color (pink and white, with pink being dominant.)
If mother has brown hair and brown eyes and father is blonde hair and blue eyes what is the possibilityof the child having green eyes and blonde hair?
It's absolutely possible, and I am living proof of it. The chances are extremely slim though, because both the trait for blond hair and the traits for green eyes are recessive. Green eyes are the rarest eye color, because green eyes are not only recessive to the brown eyes trait but also recessive even to blue eyes. I couldn't give exact odds, because the process of genetic recombination is random, but if both traits existed somewhere earlier in the family line, (one parent or more is a carrier) then the combination is not impossible. Even with blond haired people, most tend to exhibit either blue eyes or brown because of green's recessiveness to the two. Having the most recessive eye color trait and the second rarest hair color in the world appear together in one person is exceptionally rare though, but still possible.
Are sex linkedd traits usually dominant or recessive?
The alleles on the sex chromosomes are still dominant or recessive, the difference is that even a recessive trait on the X chromosome can be expressed if it is located at a gene locus that has no matching locus on the Y chromosome. The alleles for red-green color blindness are located on the X chromosome is a place that has no corresponding locus on the Y chromosome. Inheritance for a male child depends on the mother's genetics and, if she is a carrier, the male child has a 50% chance of being color blind.
Traits that are typically expressed even if an offspring inherits just one copy of a gene for the trait are called what traits?
Dominant trait due to doominant gene (as against recessive trait)
Do all traits exhibit exhibit classic Mendelian inheritance?
No, the traits Mendel studied (by chance) were all controlled by single genes. There are some traits that depend on interactions between multiple genes, sometimes even on different chromosomes. The phenotypes they generate are much more difficult to match to genotypes and inheritance than Mendel's laws directly explain.
Why do some traits occur mainly in males even though they can be inherited only from their mothers?
Consider recessive traits on the X chromosome. Women have two of these, so it is statistically less likely that a woman would express this recessive trait and much more likely that it would be masked by a dominate X chromosome. If a male gets a recessive X from his mother ( remember, males have one X and one Y chromosome ) it is going to be expressed as there is no corresponding chromosome to mask it.
Why is there so many combinations of traits in an offspring?
There are so many combinations of traits in offspring because organisms are so complex. Even if somebody has brown eyes, for example, they might have a recessive gene for blue eyes, which they could pass to one or all of their children.
Why are traits controlled by recessive alleles on the X chromosome are more common in males than in females?
Males only have one X chromosome, so even if the gene on that chromosome is recessive there is no other gene that could dominate it. Females have two X chromosomes, so if the gene on that chromosome is recessive there is still a chance that the gene on the other chromosome could be dominate and override it.
What is the strongest gene for a trait?
The strong or expressive trait is known as Dominanttrait, and the weak or unexpressive trait is known as Recessive traitbut even that is up for debate as some contend it is the dominant or recessive allele on the gene that is expressed (the phenotype).
What differences would be expected in experiments with squash plantswhich usually do not self pollinate?
Since squash plants do not self-pollinate, they cannot produce a true-breeding generation (known as the P generation in Mendel's experiment). Thus, there will be two consequences: 1. Obtaining a pure-breeding squash plant will be hard or nearly impossible. 2. Recessive traits will show up earlier in the generations. For example, in Mendel's pea-plant experiment, recessive traits reappeared in the F2 (second filial) generation. In this case, recessive traits could appear in the F1 (first filial) or P (parental) generation... or even earlier.
What is the kind of trait that seemed to vanish in the offspring produces in Mendel's first experiment?
Mendel's experiments showed the characteristics of genes that express complete dominance--that is, traits where one allele is completely dominant over another, and the recessive allele does not appear in the phenotype at all. Some of the specific traits that Mendel was testing include pea color (yellow or green, with green being completely dominant) pea surface texture (wrinkled or smooth, with smooth being dominant) and flower color (pink and white, with pink being dominant.)
What is the difference between dominant and recessive trait?
Dominant traits are the traits that mask the recessive traits. The dominant traits are stronger than recessive!
If mother has brown hair and brown eyes and father is blonde hair and blue eyes what is the possibilityof the child having green eyes and blonde hair?
It's absolutely possible, and I am living proof of it. The chances are extremely slim though, because both the trait for blond hair and the traits for green eyes are recessive. Green eyes are the rarest eye color, because green eyes are not only recessive to the brown eyes trait but also recessive even to blue eyes. I couldn't give exact odds, because the process of genetic recombination is random, but if both traits existed somewhere earlier in the family line, (one parent or more is a carrier) then the combination is not impossible. Even with blond haired people, most tend to exhibit either blue eyes or brown because of green's recessiveness to the two. Having the most recessive eye color trait and the second rarest hair color in the world appear together in one person is exceptionally rare though, but still possible.
If both parents are a positive can the child be a negative?
yes. because of recessive genes. recesive genes are traits that will not be shown if the dominant gene for that trait is present. every person has at least two alleles(forms of traits) for each trait that is shown. One you see and the other you may not. For example, two parents may have brown eyes, but if they have a child that has blue eyes then you know that the parents must have carried the recessive gene. this is possible because the brown eye allele is dominant and the blue eye allele is recessive. Even though you did not see the blue eye trait in either of the parents it was still present.
A gene that may not show up even though it is there is said to be?
recessive
