Which color is coded for by the recessive allele for flower color?

Which color is coded for by the dominant allele for flower color?

In pea plants, the allele for purple flower color is dominant to the allele for white flower color.

What is the gene for flower color?

DFR-B has been identified as the gene responsible for anthocyanin production in the floral limb based on work from I. nil in which a transposon disrupts the DFR-B gene, resulting in a sectoring phenotype and loss of pigment (ref. 28; see below).

What does a recessive allele code for?

A recessive allele is a variety of genetic code that does not create a phenotype if a dominant allele is present. … Different alleles produce slightly different proteins, which function in different ways. In dominant/recessive relationships, the recessive allele produces a non-functional protein.

Which allele is recessive for seed color?

Seed color is governed by a single gene with two alleles. The yellow-seed allele is dominant and the green-seed allele is recessive. When true-breeding plants were cross-fertilized, in which one parent had yellow seeds and one had green seeds, all of the F1 hybrid offspring had yellow seeds.

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Are purple flowers dominant or recessive?

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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

When red and white flowers are crossed pink flowers are produced?

Explanation: Incomplete dominance is an example of a non-mendelian trait (doesn’t follow the genetic rules established by Gregor Mendel). When two parents mate and produce offspring, the offspring is a blend of the two parents. So, a red flower and a white flower would make a pink flower.

Is flower color a gene?

Flower color is the result of pigment molecules accumulating in cells, but it’s not as simple as just making pigment. The location, type of pigment, and amount produced, are all very important. These aspects are genetically controlled.

Is flower color determined by one gene?

After many more experiments cross-breeding further generations of flowers, Mendel concluded that the color of the pea flowers was determined by a single locus or gene. In order for that gene to produce two different colors, it must be made up of two factors known.

Is flower color a characteristic or trait?

A trait is defined as a variation in the physical appearance of a heritable characteristic. The characteristics included plant height, seed texture, seed color, flower color, pea-pod size, pea-pod color, and flower position.

Is red hair recessive?

Redheads have a genetic variant of the MC1R gene that causes their melanocytes to primarily produce pheomelanin. … The MC1R gene is a recessive gene. Genetically, this means that a few different factors have to come into play for a person to have red hair.

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Which allele is dominant color?

Black is dominant, which means black individuals must have at least one B allele. Their genotype could be either BB or Bb.

Is brown skin dominant or recessive?

Inheritance of Skin Color

Each gene has two forms: dark skin allele (A, B, and C) and light skin allele (a, b, and c). Neither allele is completely dominant to the other, and heterozygotes exhibit an intermediate phenotype (incomplete dominance).

Are white flowers dominant or recessive?

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 yellow seeds dominant or recessive?

Seed color is governed by a single gene with two alleles. The yellow-seed allele is dominant and the green-seed allele is recessive. When true-breeding plants were cross-fertilized, in which one parent had yellow seeds and one had green seeds, all of the F1 hybrid offspring had yellow seeds.

What is the genotype of yellow?

YY is the homozygous dominant genotype (2 Y alleles). The phenotype of this genotype is yellow seed color. Yy is the heterozygous genotype (one dominant allele, one recessive allele). The phenotype of this genotype is yellow seed color.