0
First of all alleles code for different traits all across an organism. Simply looking at it, a dominant allele is a trait that essentially "dominates" or is expressed over a recessive allele. In theory every organism (that is not asexual) receives one allele from its father and one allele from its mother. If both of these alleles are dominant (homozygous dominant) than the dominant trait is expressed, if one is dominant and one is recessive (heterozygous) than still the dominant trait is expressed. However, if the alleles for both traits are recessive (homozygous recessive) than the recessive trait will be expressed.
What else can I help you with?
Why can't alleles found in haploid organisms cannot be dominant or recessive?
In haploid organisms, there is only one copy of each gene, meaning there are no alternative alleles to compare against for dominance or recessiveness. Dominance and recessiveness are concepts defined by the interaction between two alleles at the same locus, where one can mask the expression of the other. Since haploid organisms lack this second allele, the traits expressed are solely determined by the single allele present, making the concepts of dominance and recessiveness inapplicable.
Which of Mendel's law states that an organism with two different alleles will express the one that is dominant?
Mendel's law of dominance states that in a heterozygous individual with two different alleles for a trait, only the dominant allele will be expressed, while the recessive allele will be masked.
Which of Mendels principles explain why the offspring is albino?
The principle of dominance and recessiveness explains why the offspring is albino. Albinism is a recessive trait, meaning that both parents must carry at least one copy of the albino gene in order for it to be expressed in the offspring. This demonstrates how traits can be masked in one generation and expressed in the next through Mendelian genetics.
Significance of Jesus' resurrection?
His resurrection meant that the death no longer had dominance over him. It meant that he had defeated the grave.
Is arm folding left over right a dominate trait or recessive?
Arm folding left over right is a learned behavior and not determined by genetic dominance or recessiveness. It is influenced by cultural norms, personal preference, and habitual patterns.
Beadle an Tatums experiment provide a chemical explanation for dominace and recessiveness?
Beadle and Tatum's experiment showed that genes control the production of specific enzymes in biochemical pathways. In terms of dominance and recessiveness, this means that dominant alleles produce functional enzymes that mask the effects of recessive alleles that produce nonfunctional enzymes. This can lead to varying degrees of enzyme activity and ultimately determine the observable traits in an organism.
State the conclusions reached by mendel in his work on the inheritance of characteristics?
- Some "alleles" (hereditary traits) are dominant, and others are recessive. - If a pure dominant trait is bred with a recessive trait, their offspring will show 75% presence of the dominant trait, and 25% presence of the recessive trait in the F1 (first filial) generation. - If a plant with a dominant trait from the F1 generation (carrier, heterozygous dominant) is bred with a plant that shows a recessive trait, their offspring will display at 50/50 probability of dominance versus recessiveness. Thus, alleles expressing a particular trait via dominance/recessiveness, in the case of the pea plants, take the form of two alleles that combine to express a particular version. This later has been shown to be homozygous dominance/recessiveness, or heterozygous dominance.
Why are superscripts used in incomplete dominance alleles?
Superscripts are used in incomplete dominance alleles to denote different variations of a gene that exhibit blending traits rather than complete dominance or recessiveness. For example, in a flower color trait, a red allele might be represented as (R) and a white allele as (W), with a pink phenotype resulting from the combination (RW). The use of superscripts helps distinguish between the different alleles while clearly indicating their interaction in the heterozygous state. This notation simplifies understanding of how traits are expressed in offspring.
What is meant by dominance?
Complete dominance means that the dominant allele completely masks the effects of the recessive allele. The only way a recessive allele can be exhibited phenotypically is if the organism is homozygous recessive for that allele.
What is meant by the male dominance and oppression that was noted by women in the abolitionist movement?
What is meant by the male dominance and oppression that was noted by women in the abolitionist movement?Answer: The women of the times realized that men not only had a monopoly on the legislative power but in addition took action to make the women feel inferior and second-rate
What is principle of dominance and recessiveness?
The law of dominance is Mendels Law, which is a principal in genetics limited and modified by subsquent discovery of the phenemonon of linkage. The law of dominance is Mendels Law, which is a principal in genetics limited and modified by subsquent discovery of the phenemonon of linkage.
What are the genotypic andphenotypic expectancies for a cross between a heterozygous and homozygous individual?
In this case, the genotypic expectancy would be 50% heterozygous and 50% homozygous offspring. The phenotypic expectancy would depend on the specific traits being studied and whether they exhibit dominance or recessiveness. If the trait is dominant, the phenotypic ratio would likely be 100% expressing the dominant trait.
