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When Mendel crossed a true-breeding short plant with a true-breeding tall plant, all the offspring were tall. Which term describes the gene for tallness?
Dominant.
What following genotypes will express a dominant trait?
For a dominant trait to be expressed, you either need a RR or an Rr genotype. The other genotype, rr, is recessive only. In genetics, capital letters represent a dominant allele, and lower case letters represent the recessive allele.
What term describes the gene for tallness?
tallness is a high trait now wasn't that a quite ok pun? Mr happycool
WhAT describes the notation Tt for the trait of being tall?
The notation Tt represents a heterozygous genotype for the trait of being tall, where T is the dominant allele for tallness and t is the recessive allele for shortness. This means the individual will exhibit the tall trait because the dominant allele is expressed.
What is the genotype of a heterozygous tall plant?
The genotype of a heterozygous tall plant would be Tt, with one allele for tallness (T) and one allele for shortness (t).
In pea plants the allele for a tallness is dominant what are the possible genotypes of a tall pea plant?
TT or Tt
What gene is masked if it is paired with a dominant gene?
The different forms of a gene are called alleles. In Mendelian genetics, a gene has a dominant allele and a recessive allele. The dominant allele masks the recessive allele if present. So there are two possible dominant genotypes: homozygous dominant, in which both dominant alleles are present; and heterozygous, in which one allele is dominant and the other allele is recessive. The only way to express a recessive trait is to have the homozygous recessive genotype.
For sickle-cell disease assume S is the dominant allele and s the recessive allele Which genotypes are possible for offspring of a carrier (Ss) and a person who lacks the sickle-cell allele (SS)?
SS,Ss
When Mendel crossed a true-breeding short plant with a true-breeding tall plant, all the offspring were tall. Which term describes the gene for tallness?
Dominant.
The alleles for a hybrid tall pea plant are represented as?
The alleles for a hybrid tall pea plant are represented as Tt, where "T" is the dominant allele for tallness and "t" is the recessive allele for shortness. In this case, the plant has one allele for tallness and one for shortness, resulting in the tall phenotype due to the dominance of the "T" allele.
What following genotypes will express a dominant trait?
For a dominant trait to be expressed, you either need a RR or an Rr genotype. The other genotype, rr, is recessive only. In genetics, capital letters represent a dominant allele, and lower case letters represent the recessive allele.
Why does a dominant phenotype have two possible genotypes?
A dominant phenotype can arise from two possible genotypes because it can be expressed either in a homozygous dominant (AA) or heterozygous (Aa) condition. In both cases, the presence of at least one dominant allele (A) masks the effect of any recessive alleles (a), resulting in the dominant phenotype. This genetic variation allows for diversity within a population while still expressing the same observable trait.
What is a dominent allele?
A dominant allele is an allele that can take over a recessive allele, so if you have a dominant allele and a recessive allele, then the offspring will most likely have a dominant allele over a recessive allele. The dominant allele is expressed over the recessive allele.
What term describes the gene for tallness?
tallness is a high trait now wasn't that a quite ok pun? Mr happycool
If a crosss between a tall pea plant and a short pea plant produces all tall ofspring then tallness is mostly likely?
Tallness is likely dominant in this scenario, as all offspring displaying the tall phenotype suggests that the tall trait is being expressed. This indicates that the tall allele is likely dominant over the short allele in pea plants.
Which is expressed a dominant or recessive allele and which is passed on to the offspring?
A dominant allele is expressed when an individual carries one or two copies of that allele. A recessive allele is only expressed when an individual carries two copies of that allele. Dominant alleles are typically passed on to offspring if at least one parent carries the dominant allele.
Why do the genotypes PPPpand pP all have the same phenotype?
This is because they all have at least one dominant allele, P.
