And pee plants the allele for purple flowers P is dominant over the allele for white flowers, p which conclusion about phenotype and genotype is possible
If a plant has white flowers, genotype must be pp
If a plant has white flowers, then it genotype must be Pp
If a plant has purple flowers, and his genotype must be Pp
If a plant has purple flowers, and his genotype must be PP
The correct conclusion is: If a plant has purple flowers, its genotype must be PP.
The correct conclusion about phenotype and genotype is:
- If a plant has white flowers, its genotype must be pp.
To determine the correct conclusion about phenotype and genotype based on the information given, we need to understand the principles of dominant and recessive alleles.
In this case, the allele for purple flowers (P) is dominant over the allele for white flowers (p). This means that if an individual has at least one copy of the dominant allele (P), the purple flower trait will be expressed. Only if an individual has two copies of the recessive allele (pp) will the white flower trait be expressed.
Based on this information, we can evaluate the conclusions provided:
1. If a plant has white flowers, the genotype must be pp: This conclusion is accurate. Since the white flower trait is recessive, an individual must have two copies of the recessive allele (pp) to express this phenotype.
2. If a plant has white flowers, then its genotype must be Pp: This conclusion is not accurate. If a plant has white flowers, its genotype must be pp, as previously explained.
3. If a plant has purple flowers, its genotype must be Pp: This conclusion is accurate. Since the purple flower trait is dominant, having either two copies (PP) or one copy (Pp) of the dominant allele will result in the expression of purple flowers.
4. If a plant has purple flowers, its genotype must be PP: This conclusion is not accurate. Although having two copies of the dominant allele (PP) will result in the expression of purple flowers, it is also possible for a plant to have purple flowers with the genotype Pp.
Therefore, based on the given information, the accurate conclusions about phenotype and genotype are:
- If a plant has white flowers, its genotype must be pp.
- If a plant has purple flowers, its genotype can be either PP or Pp.