Can a white flower be heterozygous?

Is white heterozygous or homozygous?

Heterozygous means that an organism has two different alleles of a gene. For example, pea plants can have red flowers and either be homozygous dominant (red-red), or heterozygous (red-white). If they have white flowers, then they are homozygous recessive (white-white).

Are white flowers homozygous?

In addition, the white flower is homozygous for the recessive white allele (pp).

Are white flowers dominant or recessive?


Trait Dominant Expression Recessive Expression
Color of flower (P) Purple White
Form of ripe pods (I) Inflated Constricted
Color of unripe pods (G) Green Yellow
Position of flowers (A) Axial Terminal

What genotype is a white flower?

When ever the R gene is present in the genotype of a plant, the flower color is always red. The mutant form of this gene, which is recessive, is often written r. Plants with the genotype RR or Rr have red flowers. Plants with the genotype rr have white flowers.

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What is an example of a heterozygous?

If the two versions are different, you have a heterozygous genotype for that gene. For example, being heterozygous for hair color could mean you have one allele for red hair and one allele for brown hair. The relationship between the two alleles affects which traits are expressed.

How do you know if its heterozygous or homozygous?

An organism that has the same two copies of a gene is considered homozygous for that trait, while an organism that has different copies of a gene for a particular trait is considered heterozygous for that trait.

What is the allele for white flower color?

Ten white flowered lines carry the G allele, and seven of these have been found to carry the JI 1987 indel allele. For three white flowered lines neither mutation has been identified. (C) Flower color phenotype and alignment of SNPs at the junction between exon 6 and intron 6 of the bHLH gene of 148 pea lines.

Are purple flowers heterozygous?

A plant with two different alleles is heterozygous. The characteristic that we see with our eyes is the phenotype. For Pp, the phenotype is purple flowers. … The F2 generation is 25% PP (homozygous dominant, purple flowers), 50% Pp (heterozygous, purple flowers), and 25% pp (homozygous recessive, white flowers).

What is the phenotype of the heterozygote?

The heterozygote genotype of Rr results in pink flowers. When the heterozygote has a different, intermediate phenotype compared to the homozygous dominant or homozygous recessive individuals, this is said to be incomplete dominance. lethal alleles.

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How does a dominant trait appear in an individual?

A dominant trait is an inherited characteristic that appears in an offspring if it is contributed from a parent through a dominant allele. … If an individual carries the same two alleles for a gene, they are homozygous for that gene (aa or AA); this is the case whether the alleles are recessive or dominant.

What would the heterozygous genotype be of a flower that is white and red if these traits were said to have incomplete dominance?

In snapdragons, flower color is controlled by incomplete dominance. The two alleles are Red (R) and White (W). … The two alleles are Red (R) and White (W). The heterozygous genotype is expressed as pink.

What is the genotype of a heterozygous snapdragon flower?

In snapdragons, flower color is controlled by incomplete dominance. The two alleles are red (R) and white (R’). The heterozygous genotype is expressed as pink.

What is the chance to have a white flower?

Predicting Offspring Phenotypes

Only offspring with the bb genotype will have the white-flower phenotype. Therefore, in this cross, you would expect three out of four (75 percent) of the offspring to have purple flowers and one out of four (25 percent) to have white flowers.

Is PP genotype or phenotype?

There are three available genotypes, PP (homozygous dominant ), Pp (heterozygous), and pp (homozygous recessive). All three have different genotypes but the first two have the same phenotype (purple) as distinct from the third (white).