In pea plants, the allele for purple flowers, P, is dominant over the allele for white flowers, p. Which conclusion about phenotype and genotype is possible?(1 point)
A:If a plant has white flowers, then its genotype must be Pp.
B:If a plant has purple flowers, then its genotype must be Pp.
C:If a plant has purple flowers, then its genotype must be PP.
D:If a plant has white flowers, then its genotype must be pp.
1. B If a plant has white flowers, then its genotype must be pp.
2. B an observable trait
3. B a form of a gene
4. C Plant B and Plant C will have similar heights.
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No, purple flowers could be Pp or PP.
is he answer c
Shadow dragon is correct I got 100% thx
To determine the correct answer, we need to understand the concept of dominance in genetics. In this scenario, the allele for purple flowers, denoted as P, is dominant over the allele for white flowers, denoted as p. This means that if an organism carries at least one dominant allele (P), it will exhibit the purple flower phenotype.
Let's break down each option to identify the correct conclusion:
A: If a plant has white flowers, then its genotype must be Pp.
This statement is incorrect because if a plant has white flowers, it means it does not have any dominant alleles (P). Therefore, the correct genotype for a white-flowered plant would be pp.
B: If a plant has purple flowers, then its genotype must be Pp.
This statement is also incorrect because it assumes that the only possible genotype for purple-flowered plants is Pp. However, there is another possibility explained in the next option.
C: If a plant has purple flowers, then its genotype must be PP.
This statement is incorrect because it oversimplifies the genetic inheritance. Although the presence of at least one dominant allele (P) will result in a purple-flowered phenotype, it is also possible for a plant to have a genotype of PP and still exhibit the purple-flowered phenotype.
D: If a plant has white flowers, then its genotype must be pp.
This statement correctly concludes that if a plant has white flowers, it must have a genotype of pp. This is because the white-flower phenotype can only occur when both alleles are recessive (p), meaning the genotype must be pp.
Therefore, the correct conclusion is option D: If a plant has white flowers, then its genotype must be pp.