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How is it that a parent can have a gene but not have the phenotype that gene is code for?
A parent can carry a gene without expressing the associated phenotype due to the presence of recessive alleles. If the gene in question is recessive, the parent must have two copies of that gene to display the phenotype, while having just one copy can result in the dominant phenotype. Additionally, gene expression can be influenced by various factors, including environmental conditions and epigenetic modifications, which can also affect whether a phenotype is exhibited.
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When both alles of a gene are different what is the inidividual?
When both alleles of a gene are different, the individual is termed heterozygous for that gene. This means that one allele is inherited from each parent, resulting in genetic variation. Heterozygous individuals can exhibit a dominant phenotype if one allele is dominant over the other, or they may show a blending of traits if both alleles contribute to the phenotype.
What type of blood would you have if parents are o negative and a positive?
There is no single answer to this question.First, some definitions. PHENOTYPE is how the trait is physically displayed in the person, so the parents in this case have the phenotypes O and A. GENOTYPE is the pair of genes that a person carries that determines their phenotype. A RECESSIVE gene is one "trumped" by a DOMINANT gene in the genotype; for blood typing, O is the recessive gene and A and B are dominant. For a person to show the recessive phenotype, they must carry BOTH recessive genes; so, a person with type O must carry two O genes, genotype "OO".OK, now for our situation. The O parent has genotype OO, as explained above, and so can ONLY pass on the O gene. The type A parent, however, can have genotype AA or AO. Because the A gene is dominant, with the AO genotype the parent is still type A but can pass on EITHER the A gene or the O gene. The child can therefore end up with phenotype AO and be type A or OO and be type O. If exactly one-half of people with type A blood have genotype AA and one-half have AO, the probability of this child being type A is 75%.For the Rh factor (positive and negative), positive is the dominant trait and negative is recessive. The A- parent must be genotype -/- and can only pass on the - gene. The O+ parent can be +/+ or +/- and can pass on either gene, same situation as above. Again, if people with Rh type positive are split exactly 50/50 in genotypes, this child has a 75% chance of being positive.
What an organism looks like as a result of a gene is called?
a phenotype is the physical characteristics of an organism based on its genotype.
What is functional complementation?
Functional complementation is a genetic technique used to identify a gene by introducing a mutant organism with a defective gene to see if another organism with a functional copy of that gene can rescue the mutant phenotype. If the introduced gene can restore the normal function, it indicates that the gene is responsible for the observed phenotype in the mutant organism.
True or false The actual gene makeup of an organism is its phenotype?
False. The actual gene makeup of an organism is its genotype, while its phenotype refers to its observable physical and biochemical characteristics.
There or more forms of a gene that code for a single trait are called?
phenotype
What does an allele code for?
An allele is a specific form of a gene that codes for a particular trait or characteristic. Alleles can result in different variations of the trait, such as eye color or blood type, depending on which allele is inherited from each parent.
What term is used for an organism that has a particular gene that has a particular gene but does not show its effects?
phenotype
What is recessivr allele?
For a recessive allele to produce a recessive phenotype, the individual must have two copies, one from each parent. An individual with one dominant and one recessive allele for a gene will have the dominant phenotype.
If two genes in a gene pair are for the same trait what will that trait be?
The question should be "If two alleles for a gene are the same, what phenotype will the organism have?" Answer: If the two alleles are for the dominant phenotype, the organism will exhibit the dominant phenotype. If the two alleles are for the recessive phenotype, the organism will have the recessive phenotype.
What is The expression of a gene is called?
The expression of a gene is called the phenotype.
How does a gene contribute to the expression of a phenotype?
The combination of genes tell what phenotype will be projected
When both alles of a gene are different what is the inidividual?
When both alleles of a gene are different, the individual is termed heterozygous for that gene. This means that one allele is inherited from each parent, resulting in genetic variation. Heterozygous individuals can exhibit a dominant phenotype if one allele is dominant over the other, or they may show a blending of traits if both alleles contribute to the phenotype.
What is the phenotype of each parent and of the offspring?
The phenotype is the physical or observable characteristics of an organism. The phenotype of each parent contributes to the phenotype of the offspring through genetic inheritance. The offspring will exhibit a combination of traits from both parents, resulting in a unique phenotype.
What was the genotype of the offspring that did not share the parent's phenotype?
The genotype of the offspring that had the same phenotype as the parents is rr or wrinkled. The phenotype for the seed shape of both parent plants is round.
What do alleles determine?
Alleles are different forms of a gene that can code for different traits. They determine variations in specific characteristics such as eye color, height, or blood type. Each individual inherits two alleles for each gene, one from each parent.
Is the gene type a person has called their phenotype?
Not exactly. The phenotype is an organism's physical appearance.
