homozygose negative :D
If the recessive genotype is selected for more often than the dominant genotype, the recessive allele will become more common than the dominant allele in the gene pool.
That's strictly a human view point. In fact there is no such difference, you just have two different proteins (one from each gene) which have behaviors relative to each other. How we (us, people) interpret the somatic result of the competition between them is labeled "dominant or recessive". For example - assume one form is totally non functional, then the somatic result would be classed as recessive.
Mendel examined one trait at a time in his pea plant experiments. For each trait, he had two choices: the dominant allele and the recessive allele. Therefore, there were two choices for each pea plant trait that Mendel examined.
If selective pressure changed and the recessive gene was selected for, individuals carrying the recessive gene would have a higher chance of surviving and reproducing, leading to an increase in the frequency of that gene in the population. Over time, this could result in the recessive gene becoming the dominant trait in the population.
A lethal recessive trait is a genetic condition caused by a recessive allele that, when two copies are inherited (one from each parent), leads to the death of the organism before or shortly after birth. These traits prevent affected individuals from surviving to reproductive age, resulting in the elimination of the harmful allele from the population over time.
50%. There are four possible outcomes of the cross:dominant trait from "dad", dominant trait from "mom"recessive trait from "dad", dominant trait from "mom"dominant trait from "dad", recessive trait from "mom"recessive trait from "dad", recessive trait from "mom"Therefore, to get hybrid offspring (one dominant, one recessive), you have a 2 out of 4 chance.
A recessive trait only appears in an organism when it is homozygous for that trait, meaning it has two copies of the recessive allele. This occurs when an organism inherits the recessive allele from both parents.
If the recessive genotype is selected for more often than the dominant genotype, the recessive allele will become more common than the dominant allele in the gene pool.
A recessive trait can become more prevalent in a population through processes like genetic drift, founder effect, or natural selection favoring individuals carrying the recessive trait. Over time, these mechanisms can lead to an increase in the frequency of the recessive trait within the population.
A recessive phenotype can only be observed when an individual is homozygous recessive for that trait, meaning they have two copies of the recessive allele. This is because in a heterozygous individual, the dominant allele will mask the expression of the recessive allele.
There are no such things as dominant and recessive genes. There are only dominant and recessive alleles. Dominant alleles are parts of a gene that present its features over the recessive allele, which is the one that is always masked by the dominant allele. The recessive allele's trait only shows if both of the alleles in a trait are recessive.
First of all, there is no 'twin gene' as such. The only genetic link to twinning is that of hyper-ovulation, in which the mother releases more than one egg at a time. If women in a particular family have the gene for hyper-ovulation then this will increase their chances of having dizygotic (non-identical) twins. There is no link between genes and identical twinning. There is no scientific evidence to show that twins are more likely to skip a generation, although if hyper-ovulation runs in a family then it is more likely that twinning will occur across the different generations.
That's strictly a human view point. In fact there is no such difference, you just have two different proteins (one from each gene) which have behaviors relative to each other. How we (us, people) interpret the somatic result of the competition between them is labeled "dominant or recessive". For example - assume one form is totally non functional, then the somatic result would be classed as recessive.
NO, because a dominant phenotype could either be homozygous or a heterozygous.so unless you are sure about the genotype of parents we can't determine it...but we can determine the genotype of a person showing reccessive phenotype, as a recessive trait always expresses itself in a homozygous condition...
A dominant gene will be expressed over a recessive gene when both are present in an individual. This means that the trait determined by the dominant gene will be expressed in the individual's phenotype.
You can only carry one recessive trait.
Mendel examined one trait at a time in his pea plant experiments. For each trait, he had two choices: the dominant allele and the recessive allele. Therefore, there were two choices for each pea plant trait that Mendel examined.