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)
If a plant has white flowers, then its genotype must be pp.
If a plant has purple flowers, then its genotype must be PP.
If a plant has purple flowers, then its genotype must be Pp.
If a plant has white flowers, then its genotype must be Pp.
What is a phenotype of an organism?(1 point)
an observable trait
a structure that carries genetic information
a combination of alleles
a section of DNA
What is an allele?(1 point)
a dominant form of a gene
the location of a gene on a chromosome
a form of a gene
the trait a gene controls
Define Genotypes and Phenotypes Quick Check
4 of 4Items
Item 4
Use the table to answer the question.
Plant A Plant B Plant C
tt TT Tt
The table shows the genotypes of three pea plants for the allele for height. Which prediction about the three plants is the most reasonable?
(1 point)
Plant A will be the tallest.
Plant C will be the shortest.
Plant B and Plant C will have similar heights.
Plant A and Plant C will have similar heights.
Plant A and Plant C will have similar heights.
The correct conclusion about the phenotype and genotype of pea plants with purple and white flowers is: If a plant has purple flowers, then its genotype must be Pp. This is because the question states that the allele for purple flowers (P) is dominant over the allele for white flowers (p). Therefore, if a plant has purple flowers, it must have at least one dominant allele P, which can be paired with either another dominant allele P (genotype PP) or a recessive allele p (genotype Pp).
The correct definition of a phenotype of an organism is: an observable trait. Phenotype refers to the physical characteristics or traits that are expressed by an individual as a result of its genetic makeup (genotype). These traits can be observed and measured, such as hair color, eye color, or flower color.
An allele is defined as: a form of a gene. Genes are segments of DNA that contain the instructions for producing specific proteins, which in turn determine the traits or characteristics of an organism. Alleles are alternative versions or forms of a gene that occupy the same position (locus) on a chromosome. Each gene can have different alleles, which can result in variations of traits.
The most reasonable prediction about the three pea plants in the given table is: Plant A and Plant C will have similar heights. This is based on the understanding that the allele for height (t) is recessive, and the allele for tall height (T) is dominant. Plant A has the genotype tt, which means it has two recessive alleles and will be short in height. Plant C has the genotype Tt, which means it has one dominant allele and one recessive allele and will be tall in height. Therefore, it is reasonable to predict that Plant A and Plant C, having different genotypes but both having a recessive allele (t), will have similar heights.
The conclusion about phenotype and genotype is:
If a plant has white flowers, then its genotype must be pp.
A phenotype of an organism is:
an observable trait.
An allele is:
a form of a gene.
The most reasonable prediction about the three plants is:
Plant C will be the shortest.