Is anthocyanin dominant or recessive?

Using controlled crosses, the inheritance of anthocyanin expression was found to be a dominant two gene trait, with the inheritance of ruffled leaf texture being controlled by a single recessive gene.

What would be the color of the plants that are homozygous dominant for anthocyanin?

Plants that have heterozygous (anl/ANL) or homozygous dominant (ANL/ANL) genotypes produce anthocyanin and display the purple stem phenotype.

What is the anthocyanin gene?

Two classes of genes are required for anthocyanin biosynthesis, the structural genes encoding the enzymes that directly participate in the formation of anthocyanins and other flavonoids, and the regulatory genes that control the transcription of structural genes.

Which gene is responsible for the production of anthocyanin pigment?

Cytokinins enhance anthocyanin content and transcript levels of sugar inducible structural gene UDPglucose: flavonoid 3-O-glucosyl transferase and regulatory gene PRODUCTION OF ANTHOCYANIN PIGMENT 1.

Is the yellow-green leaf trait dominant or recessive?

The expression of anthocyanin on the stem of the Yellow-Green Leaf variety is dominant over the anthocyaninless, Non-Purple Stem, while the lighter, yellow-green leaf phenotype is recessive.

Which traits seem to be dominant traits in fast plants?

The green stem in fast plants seems to be the dominate trait.

What would a heterozygous plant look like?

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). Carriers are always heterozygous.

Does anthocyanin prevent photosynthesis?

It is conceivable that anthocyanins protect the photosynthetic apparatus against photodamage by reducing visible light under conditions when UV-radiation inhibits photosynthesis. However, high visible light levels alleviate many of the detrimental effects of UV-B radiation (Teramura, 1980; Caldwell et al., 1994).

What triggers anthocyanin production?

Reactive oxygen species (ROS) are common by-products produced under different biotic and abiotic conditions and cause oxidative stress when accumulated at a high level in plant cells. This in turn leads to the production of anthocyanins.

What is the role of anthocyanin in photosynthesis?

Anthocyanins are photoprotective agents which shade and protect the photosynthetic apparatus by absorbing excess visible and UV light and scavenging free radicals (Guo et al., 2008).

Is the purple stem trait dominant or recessive support your conclusion with examples from your laboratory observations?

Support your conclusion with examples from your laboratory observations. The Purple Stem trait is dominant over the Non-Purple Stem trait, as evidencedby the fact that the purple stem phenotype appears in 100% of the F1 plants and in 75% of the F2 plants.

Is the anthocyaninless trait in Brassica rapa recessive or dominant?

In rapid-cycling Brassica rapa, also known as Wisconsin Fast Plants, the anthocyaninless trait, also called non-purple stem, is widely used as a model recessive trait for teaching genetics. Although anthocyanin genes have been mapped in other plants such as Arabidopsis thaliana, the anl locus has not been mapped in any Brassica species.

How has the anthocyanin biosynthetic pathway changed in B rapa?

The anthocyanin biosynthetic structural genes have expanded through whole genome and tandem duplication in B. rapa. More structural genes located upstream of the anthocyanin biosynthetic pathway have been retained than downstream.

Where is the B rapagenome located in the human genome?

A search of the B. rapagenome indicates that it resides within the first intron of the predicted gene Bra007262.

Do the alleles present in RCBR differ in the repetitive DNA sequences?

However, the two alleles present in RCBr do not differ in the repetitive DNA sequences, but instead vary in a 53-bp insertion/deletion in the single-copy DNA flanking the repetitive element (Figure ​(Figure2).2). Alignment of these alleles with the B. rapagenome sequence indicates almost 100% identity except for the 53-bp segment.